I had absolutely no idea what to title this video. I think this is one of the most interesting stories that's been on this channel, but trying to sum it up in a few words, for a medium that needs must-click titles, was really difficult!
After New Zealand, now Australia. Nice to hear what's under down there! Update: After watching this, I remembered Tom's video about the Basel reaction boats and the question on the end: what things we (as a humanity) missed?
I couldn't have thought of this though, if the guy had shown me his sketch I would've said it either wouldn't work, be extremely inefficient, or wear out the tube really quickly.
It's so annoying too, like a screw and tube where the tube is rotated rather then the screw, I could have thought of that. (But I didn't and odds are neither did you)
@@dorusie5 next time you think of an idea like that maybe give it a shot (if it isn't to much of a hassle) and maybe you will be the next person to invent a geniusly stupid way of doing something. (Sometimes knowing how things work may actual backfire and harm your creativity, like the guy admitted to not believing it would work only for his son to get him to try it, had his son not said anything it could of never been invented)
Tom, I seriously don't understand how you can, week after week, find some story of an out of the way hidden gem that I had no idea I desperately wanted to know.
@@GeorgeWashingtonLaserMusket Oh really! Everyone kept doing it the same way as Archimedes by rotating the screw and no one thought to do it the other way around? If they did think of doing it with the outside cylinder rotating instead of the elevating screw then they kept it to themselves.
"Why didn't anyone think of this before?" is one of the greatest things you can say about a new invention. That a device that could have been made with literally ancient technology (it would make perfect sense to Archimedes, I think) is a significant improvement in today's world is genuinely remarkable. That it could save lives (by reducing flammable dust dispersion) even more so. Good on ya', Peter Olds!
It is absolutely likely that many inventions just went lost, by means of being obvious and self explanatory at the time they appeared, to the people around them.
@@viral_suppressor4154 a source on that would be interesting, i think you could be reight but the reasoning seems off to me, where did you get this info from would be oportunity for me to learn
I suspect the "why didn't anyone think of this before" question is down to screw conveyors/elevators already existing and already working reasonably well. It's kind of like how you'll make do with a blunt kitchen knife for months before you finally replace it and wonder why you didn't replace it sooner because of how much easier it makes things.
I wonder if people are so focused on the solution being complex that they miss a simple solution just because they never considered the solution could be simple.
I would assume people have thought of this before, but never really seen any reason to use it. Why rotate the cylinder of you can rotate the screw would be the common conception.
“It’s different, it’s useful, and if it helps people that’s great!” A set of standards and morals to live by right there! Brilliant video and well done to the inventor!
Assuming they don't charge huge licensing fees. If they patented it to protect the concept from being locked down in patent litigation, then great! If they patented it to profit from patent litigation at a cost to technological progress (and potentially lives where this could prevent explosions), not so great. Which it is wasn't made clear in the video.
@@himselfe Patents, in the US at least, only last 20 years. During that time, you can and should litigate any copy cats, those don't help technological progress. If you want to save lives you have to pay for your life-saving equipment like anyone else, infringing on someone else's property while doing it doesn't make you the good guy.
What I like about this design is that it's not only the grabber at the bottom, but the friction of the grain against the pipe sidewall that makes it push up the incline. By that logic, the normal force against the pipe wall would increase as the rotational speed increases due to centrifugal force increasing. Clever!
sorry if im misunderstanding, but can anyone explain how the planar horizontal centrifugal force contribute to the upward vertical movement of the particles? Is it because the net force is up after accounting for the normal force from the screws surface and adding that to the friction on the walls? also @SmarterEveryDay, you probably wont see this but been a big fan of your channel for a very long time, just playing devils advocate!
@@aruhtaz friction can be described as the normal force acting on an object multiplied for the coefficient of friction. the coefficient of friction between two object is constant, so you can mostly ignore it. the normal force, however, can change. force is mass times acceleration, so the faster the grain moves the harder it presses against the walls of the tube, and the harder it grips the tube, the more friction is generated. this creates a positive feedback loop where the faster the tube is spinning, the faster the tube can spin.
When I was a kid, I was always disappointed that all of the “simple machines” have been invented already. The kid inside me is jumping up and down in glee.
I know what you mean. Now I can see that there are still plenty of "easy" things to invent. Thinking of a good one though and then making it is really hard.
I'm still struggling to find out what the advantage is..🤔 Is it better, or just a clever different way? What's so bad about turning the auger screw, why is this better than a stationary tube and a spinning auger?
@@A-Milkdromeda-Laniakea-Hominid I agree, I also thought it would make little difference, but upon further thought, it allows you to have a more sealed system as there's nothing that needs to connect from the outside and in to move the screw, and the casing agitates the bulk better than a shielded screw, so I reckon it loosens the material more easily and packs better as a result. But I still think it's black magic, there has to be a limit to high tall you can make these things, as at some point the resistance in the bulk in the hopper can't overcome the resistance of pushing the material up the screw and will stop feeding into the case, no?
And the main advantage seems to be you can add as many bearings to the rotating part as you want and none of them can be contaminated by the product. Try that on the screw conveyor.
Id still say the *main* advantage is it doesnt create dust. That is what made this thing so intriguin to so many and is its most important boon; as it grtly decreases risks of things like corn dust and sugar dust, which can create huge catastrophic injury lawsuits bcuz of how devastating, and hard to stop once they get started, they are. Ofc the cases where such happens are where the dust isnt maintained, but this makes it so they dont have to do nearly as much to maintain the dust bcuz they arent kickin up nearly as much. Also, if ya wanna see an example of such devastation, check out vids by the USCS which tells stories of industry accidents caused by things like this. They have one on a dust explosion that was caused by **several inches** worth of unmaintained dust allowed to buildup; they were even warned three times prior but failed to maintain the dust and it caused the whole place to go up in flames so damn fast that no one inside when it started was safe from it.
Thank you - I was wondering about this, the screw model seemed equally good but indeed I could imagine that with this you can keep any moving parts away from the material (or water!)
@@jl3423l4jsdf That's fine for a very short conveyor, but once it gets longer the central rotating screw will start to whip. The faster it rotates, the shorter/stiffer it has to be to avoid this.
As someone on a constant journey of experimenting and expanding experience by creating models that tell me things I wouldn't have known otherwise, I can state that the simplest ideas, which incidentally have the broadest range of benefits, generally take the longest time to get around to. Part of it is the habit of thinking one knew what would happen, so why bother. Those moments when one does finally get around to something of this kind and then gets thoroughly mind expanded by all the unforeseen sides of it, those are mighty fun...
Read the patents closer, it's related to specific uses. There is much old non protected prior art that related to transporting fluids at an angle by rotating the housing. It wasn't used much but was unsurprisingly found in train designs for a very short period. These guys have that sort of background so I'm not surprised that they made something along that train(haha) of thought for this purpose.
Serviced one of their machines at Boral, (making compressed fibre sheet).One point they don"t say about what"s the advantage of turning the outer tube VS turning an inner screw,is you don't need the fixed screw to be the full length of the tube,once material has travelled up a couple of metres of "screw",it keeps pushing up ,by the new material been fed in through the base.Where as a turning screw system needs the screw to be full length to carry the material up and out.
Why does the turning screw system need to be the full length, though? Won't the screw continue imparting force on the grain, causing it to move upward and pushing up the grain above it that is not in contact with the screw?
@@Shadowmech88 Willing to bet because it has to work against the sides of the tube it's housed in as well as the weight of whatever it happens to be lifting.
@@Shadowmech88 I think part of it is that even if you didnt have the screw being full length, you would still need the center supporting pole to be full length, especially if it were spinning really fast. If it was only supported by the bottom it could easily be off balanced and be a disaster. And for long lengths you can support the outside for the tube with no internal obstructions like what may be necessary for the spinning screw.
The fact that it took over 2200 years for this to be developed tells me that either someone's design was lost to time, or humanity really got stuck on a design that works. Either way, incredible amounts of Kudos for Mr. Olds to figure this out.
Maybe it sort of needed the kind of paradigm shift of thought that was popularized by the theory of relativity and the whole frame-of-reference thing? Also, how many people work with these kinds of things, in-depth, anyway? This is putting the dangerous moving part on the outside. You may need deep practical understanding to realize the advantages of doing it this way might outweigh the disadvantages vs. turning the screw.
I'll take your word for the dust reduction properties. But to me, the 'oh wow would you look at that' moment was when Tom turned it backwards and the bird seed just sank right out of sight! Almost like magic how a slight turn to left or right makes the product just fill and drain along the tube wall with almost no internal agitation.
its all in those little fins at the bottom of the tube. Turn them one way and theyre forcing material into the thing and making it climb the screw, turn it the other way and it's actually pushing away the material in the bowl, giving the material in the screw space to fall into. If those fins werent on the bottom the thing would do nothing. Very cool invention and a very simple principle.
@@SpydersByte yes, that's the key that makes it easier to understand. When you're turning the screw, the bottom of the screw thread acts as a scoop, when you're turning the casing you need to replicate that part
As someone who has spent 10 years in pharmaceuticals, including handling of bulk powders, I have never seen this device in my life, and just seeing this, and the amount of days that could've been made so much easier, astounds me!
@@MoritzvonSchweinitz I believe it's due to the fact that the air in the tube remains static as opposed to a rotating screw. The gentleman in the video explained that this is beneficial when handling powder because less dust is kicked up.
Ive got notebooks with loads of sketches and mock-ups for invention ideas that I havent done anything with because Ive thought “Ah, 7.8 billion people alive today, and countless more who’ve come before, surely someones built this already”, but this inspires me to rethink that and pursue them.
I had to do a double take at the start of the video because it looked so familiar and then I looked at the description and realised that the reason it looked so familiar was because you were in the town that I grew up in!
@@IDFK7477 The whole thread is probably bs. The size of the town is less than 30,000 and the place name isn't in the title so it would have have to be sheer coincidence. I go for the simplest explanation.
Everyone loving the design.. Me too ofc, but I'm more fascinated by this humble guy. He came up with such a great idea and there he sits saying if it helps ppl, then it's fine. What a legend.
I remember a Tom Scott video a while back, about boats crossing rivers through the power of the current. I remember Tom mentioning at the end that it all made almost intuitive sense once you knew but people generally didn't think of it. I remember him then wondering what else was waiting to be figured out that everyone had just... missed. And here we are with Mr Olds' Elevator - something everyone just... missed. Remarkable.
This is still one of my favorite videos on this channel (along with the zero-G testing tower). Simple, elegant, innovative, just an idea that hits all the right spots.
@@MrYoursoup exactly.. It's the scoop that makes this work.. So it's not fair to call rotating the cylinder the same as rotating the screw.. As Tom did
Think of the screw as a spiral staircase. The scoops at 4:55 force grain (or whatever) into the bottom of the staircase and continue feeding more in, so the grain has nowhere to go but up!
@@ktaragorn Actually, I think it is fair to call it that - with a regular screw, you need some kind of casing and the screw forces the things you're lifting against the casing. In this case, the casing forces it against the screw, so it's just the other way around, as you'd expect.
I think the Archimedes screw is just such an old design that nobody’s even considered trying to improve it. Because *of course* someone already tried centuries ago, surely?
I think it's because Archimedes took out a 3,000 year patent and no one wants to anger the ghost of a 2,300 year old brilliant inventor who used to be able to set fire to distant ships and pick up and throw around the ones closer to him.
Nah, I'm almost certain this design would have popped up a few dozen times in the past except unlike Mr old here when told "that'll never work" they let the idea die.
@@FoxDren Whereas, i'm almost certain this design has never appeared before. What metric should we use to decide who is more likely to be right? I'm going on the fact that no one has applied for a patent on a similar design before, what are you using?
@@maxnaz47 He's not saying that this has been done before, merely that someone has probably thought of it but never bothered to try it. It's just common sense. History is full of people discarding brilliant ideas because they didn't believe they would work. Even Albert Einstein was guilty of it with his cosmological constant. And that aside, citing patent law isn't a good way to argue that this design hasn't appeared before. Patent law as we know it has only been around for about 500 years. The Archimedes' screw has been around for over 4 times as long, meaning that for a majority of its existence, people couldn't patent variations on it even if they wanted to. For another, not every idea gets patented, especially something this simple. Most people may not even realize it's worth patenting to begin with. It's entirely possible that multiple people throughout the past 2,000+ years have come up with this design before, and that for one reason or another the idea just didn't spread. You can tell just from reading this comments section that the average person can't see what advantages it has over the traditional method.
These kinds of innovations are why I enjoy humanity. There's always a new perspective yet to come. From youth to elder. I'm stoked to show this to the team I work with to hopefully inspire them to keep thinking of ideas for improving our shop. Revolutionary ideas can come in the simplest of forms
I was so sure that we were going to hear how this was invented like a hundred years ago by this dudes father. Then I realised that this was a recent invention. THAT IS AMAZING!!!
Also Tom, you should do a series on great inventors of today - more of this kind of stuff...individual tinkerers in their sheds and workshops creating wacky stuff. I'm sure there's a whole world of people and inventions out there waiting for a chance to show off on your channel!
I really love stuff like this. Although far less efficient, the “old days” of workshops with a bunch of highly trained people working there, and run by steam engines has a certain charm about it. This place is kind of like an up-to-date version of that. To see it produce an important invention is even more awesome!
Some years ago I came to a lecture where they were talking about a new design for hidding magnetic fields based only on classical electromagnetism... Turns out there are still things, phenomenons, mechanisms to exploit in what they call classical physics.
You forgot to mention WHY it's an improvement over conventional screw elevators through. The main advantage is that, since the screw itself is fixed, it moves material much more efficiently upwards because it doesn't have to turn the screw against the resistance of all the grain being pulled down by gravity. It also allows for a large clearance between the screw and the casing cylinder, reducing friction and damage to the grain or equipment.
When I saw the title I was thinking of the car and was wondering when the guy had time to make an elevator. Yes, I was thinking of "Olds Motor Vehicle Company" by Ransom E. Olds in 1897. Two smart guys.
What a remarkable story about an outstandingly original piece of intuition. Hats off to Mr. Olds and kudos as always to you Tom, for digging out another fascinating idea for a film!
Ian Cook Because the material being lifted is packed against the side wall there is less friction, dust and air mixed in when lifting. All of this is very important for materials, when their dust is present, are known to combust when heated in the presence of air.
Its a full flow system meaning that no air is inside the tube (other than the air between the grain, or sand etc...), this means that the material doesn't get agitated as it would in a traditional screw pump, causing massive amounts of dust which can be extremely dangerous depending on the material. So basically, dust reduction.
@@robertreitze3192 I dont think theres any difference. Thats why it doesnt make a lot of sense. The only benefit I see is that having the tube rotate its trivial to add those scooping side pieces on the button. if the spiral was the rotating part that might be harder.
@@porkeyminch8044 Well that's a reasonable fear to have. But you don't have to be very creative to work as an engineer. If you don't have a lot of creativity you can always work for standard stuff. You wont be a genius but you don't have to. You can also work on your creativity. It's a skill like any other, work and make it grow. You'll probably learn ingeniusity on your studies. Don't worry too much, just work on it and it will be fine.
Coming from a farming background and having had machines mobile machines for cleaning and processing corn for decades find this incredibally interesting. I wonder how well screw would act regarding self cleaning when seed treatments were applied and if the wet and slightly sticky material would shear off efficiently? Think it may depend on bushal weight of material, size of seed and pitch/size of screw?
Seems like it would work best with very dry material. The scoops at the bottom generate the compression to lift the material, and if it couldn't "flow" into the scoops you might run out of compression. Mumble, mumble, relationship between weight of material/ ease of "flow"/ rate of spin/ friction in tube... Anything sticky might not work as well, if at all. I'm an armchair engineer at best though, my two cents. .
@@jgcelliott1 Agreed, though there's another downside: you can never lift all of the product this way. Since the lower portions push up the higher ones, enough of it needs to always be accumulated at the bottom in order for the elevator to work.
As per usual, you have released an interesting and wonderful video on a thing I had no idea about, and now I don't know how I'd never heard of it. This is an incredible system, and I'm so curious as to what else is out there that people like Mr. Olds haven't noticed yet...so much might change when we find it. I can't wait to see more from your channel Tom, and keep finding wonderful things to talk about!
Just when you think there is nothing new under the sun someone like Peter Olds decides to reverse a 2000 year old engineering principle, by Archimedes no less!!, and guess what, it works. And it works in ways that Archimedes hadn't thought of. Check out some of the Olds Elevator licensees web sites around the world to see some of the most interesting and challenging applications for this truly unique technology.
This is amazing to me. It's easy to imagine every simple machine has been created over the years. Clearly there's always room for improvement even at the most fundamental levels.
Great video and invention. I think there’s an important difference between a conventional screw auger in a tube and the Olds elevator - not just a difference in “point of view”. In the conventional auger, the screw thread moves w.r.t. the material (and would do so, and elevate some material, even without the tube). In the Olds elevator, the screw thread is naturally stationary w.r.t. the material and relative movement only occurs because the tube drags some material along as it rotates. Note that there are screw augers where the tube rotates at the same speed as the screw (discussed in the background of the patent). There is no relative rotation between screw and tube in these - this shows that it is the relative rotation of the screw and the material that causes elevation. TLDR: Olds elevator is not equivalent to screw auger; relative rotation of screw and tube is red herring; Olds elevator works because tube drives material around screw so material follows thread upwards
Spinning e casing in a sealed system is easier than spinning the helix as anything gear, belt, ect can spin the casing from the outside of the casing. Amazing it took so long for someone to actually realize and action on it.
After i've seen this, i've forgot the exact title, and the channel, i only remembered the machine's category "screw conveyor", by which it couldnt be found! So please next time maybe at least in the description mention the exact terms, and definitions so it can be found easier, thanks. The video was great.
I know the feeling, I live about halfway between the tree that owns itself and the high school with golf cart parking. Near the city where every household is required to have a gun. He's come close so many times
This is still among one of my favourite vids of yours. Its such a cool story and the amazement you show for this interestin novel invention is genuine and engaging
Excellent video! I would like to point out the Olds Engineering is located in Maryborough, Queensland, Australia. As there is another one in Victoria, Australia as well.
Olds Engineering is a place of wonder. All they do is done well and there is no limit to what these guys can achieve especially when it comes to stuff no one else wants to do. Along with Bundaberg Foundries (another wonderland for an engineer) they are a gem of Queensland manufacturing.
Honestly, when I think of the usual version of this sort of lift-with the rotating screw-I'd always thought of the movement as being the screw/product relative to each other. Perhaps that's how others have thought of it, too, and why simply no one thought of it for so long. This is actually kind of an eye-opener to the relationships involved in letting these types of lifts work.
The original Archimedes Screw is used primarily for liquids, which is why it has to be installed on an angle, so the pockets of liquid are carried up it. It's operating principle is gravity - each 'glob' of liquid stays in its 'pocket'. (That would also work for a flowing solid like grain etc). As a matter of constructional convenience some very large Archimedes screws e.g. in sewage works, are built with a rotating screw inside a fixed outer casing, but they still use gravity as the operating mechanism. This elevator looks very similar but the mechanism is quite different, it relies on relative motion between screw and casing and friction within the material being conveyed. As Tom says, there is no difference whether the screw rotates or the casing rotates. (An original Archimedes screw, with the screw fixed to the housing, would not work if stood vertically). Fascinating though, I'd never seen or heard of this before.
@@ThreadBomb I'm not aware that it ever has. I think it might prove too inefficient, since it would rely on viscosity to make it operate (just as the Olds elevator relies on the forces between the grains) and viscosity absorbs a lot of energy.
I think the general problem with archimedes screw is the same as with Wankel engine: sealing the moving surfaces is just too damn hard in practice. You either have too much friction, too much leaking or too short lifetime for the seals.
All flammable fine grain materials are highly explosive as a matter of fact. Flour mills have been blowing up since they started using primitive machinery to grind it.
Tom, welcome to Australia. My family and I love your videos. Thank you. I hope you enjoy your stay here. Bear in mind that we're experiencing the worst drought in living memory. It's always a "wide, brown land" (Australian poetry reference) but not usually _this_ brown. Also, anything with more than four legs or less than one are best left alone :)
How no one has offered you a Mr. Science type show to help teach kids about things in the world they'd never get to know about otherwise, is beyond me.
*Next video:* Mr Olds' remarkable cobblestone generator *Tom:* _This took a while to get my head around._ _Visually cobblestone seems to be coming out of the thin air. But from a physics perspective, inside the machine, lava meets with water to..._
When you asked how people didn't figure out this device I remember a question nobody around me has been able to satisfactorily explain "Why did it take people so long to invent the steam engine?" The _Idea_ of using steam goes back to medieval torture designs but it took literally a thousand years to put a fan on top of that steam and harness the rotational energy that it produces. You even had the circular drums prisoners were forced to walk on to generate movement so the idea that something spinning can provide energy wasn't unheard off but it would take until around 1813 (According to wikipedia) that the steam ship was invented. When ships were the most important part of any kingdom with trade and military might surely people would have been looking for ways to advance ships the same way people are looking to advance encryption or hardware in modern times.
I think it still needs the scoops at the bottom, though, no? If it were JUST a casing rotating, then yes, the screw is "rotating" if you look at it from the perspective of the casing, but so is the material at the bottom, rotating away from the screw. You need the scoops to force the material to spin with the casing and get it going up the screw.
The question I have is: What's the difference? What does rotating the casing do that rotating the screw doesn't? Why couldn't they just rotate the screw? That simply not covered in this video. I mean yes, it's neat that you can get the same effect by just rotating the casing... but what is the point of doing that? What advantage does it have or what does it do different in comparison?
@@mementomori5580 to my understanding the issue is getting the screw to scoop stuff enough, with the casing rotating the scoops at the bottom grab more stuff to move and therefore can move stuff more easily
Sorry to be that guy but these are not (great) puns... For puns to work they need to have a dual meaning in the sentence. Calling the inventor an "Archimedes screw or tube" does not work. Plus the word Archimedes is already related to the screw, so no prizes for putting them together.
@@jogabonito8989 oh, you're no fun. -pythhon? puns are not just homonyms. homophones are also puns, ore pseudo-homonym/pseudo-homophones also, the 'II' kinda looks like a pipe (which is), 'two' sounds like 'screw' with having the 'w' sound(they had the same IPA), and is also a 'second generation' archimedes screw.
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I had absolutely no idea what to title this video. I think this is one of the most interesting stories that's been on this channel, but trying to sum it up in a few words, for a medium that needs must-click titles, was really difficult!
After New Zealand, now Australia. Nice to hear what's under down there!
Update: After watching this, I remembered Tom's video about the Basel reaction boats and the question on the end: what things we (as a humanity) missed?
I like vaguely Roald Dahl-esque titles
How about 'SPINNING SPIRAL GONE WRONG!!!'?
The inventor some call Archimedes II
The Innovative Lifting Device That was Unknown for a Century
"The best inventions are the kind where anyone could have thought of it but didn't" - Rex Garrod
Thumbs up for Rex Garrod!
I couldn't have thought of this though, if the guy had shown me his sketch I would've said it either wouldn't work, be extremely inefficient, or wear out the tube really quickly.
That's the definition of genius !
It's so annoying too, like a screw and tube where the tube is rotated rather then the screw, I could have thought of that. (But I didn't and odds are neither did you)
@@dorusie5 next time you think of an idea like that maybe give it a shot (if it isn't to much of a hassle) and maybe you will be the next person to invent a geniusly stupid way of doing something. (Sometimes knowing how things work may actual backfire and harm your creativity, like the guy admitted to not believing it would work only for his son to get him to try it, had his son not said anything it could of never been invented)
Tom, I seriously don't understand how you can, week after week, find some story of an out of the way hidden gem that I had no idea I desperately wanted to know.
CAl3vara exactly it's amazing
Having watched all of the Technical Difficoulties episodes. I'm fairly sure Tom has read and keeps reading every article on Wikipedia :)
That's what the world is like. :)
@@stumbling and Tom to show us :D
After awhile, the stories come to you ;)
This really goes to show that the most powerful motivator possible is a sibling telling you your idea will never work.
Hahaa
I've heard it said that success is 90% spite
@@DragonJohn Markiplier in a nutshell and it's great.
Very true
@@GeorgeWashingtonLaserMusket Oh really! Everyone kept doing it the same way as Archimedes by rotating the screw and no one thought to do it the other way around? If they did think of doing it with the outside cylinder rotating instead of the elevating screw then they kept it to themselves.
"Why didn't anyone think of this before?" is one of the greatest things you can say about a new invention. That a device that could have been made with literally ancient technology (it would make perfect sense to Archimedes, I think) is a significant improvement in today's world is genuinely remarkable. That it could save lives (by reducing flammable dust dispersion) even more so. Good on ya', Peter Olds!
It is absolutely likely that many inventions just went lost, by means of being obvious and self explanatory at the time they appeared, to the people around them.
@@viral_suppressor4154 a source on that would be interesting, i think you could be reight but the reasoning seems off to me, where did you get this info from would be oportunity for me to learn
@@harstenstahl1367 I think Viral Suppressor is using the 'put yourself in other people's shoes to make a speculation' technique. It's a good one.
I’m sure someone thought of it or heck made it before
probably didn’t see it as different enough or didn’t have a use for it
I suspect the "why didn't anyone think of this before" question is down to screw conveyors/elevators already existing and already working reasonably well. It's kind of like how you'll make do with a blunt kitchen knife for months before you finally replace it and wonder why you didn't replace it sooner because of how much easier it makes things.
It's a crime that as an Australian that lives close to this guy, I had to see this video to learn about him...
I wonder what other simple looking devices and mechanisms we haven't discovered yet.
A car that moves the planet under you rather than moving itself over the planet.
@@TheLeadhound I think you're on to something 🤔
A mechanism that reveals itself to humanity instead of being discovered?
@@TheLeadhound so reversing means spinning the planet backwards and you can go back in time like superman?
I wonder if people are so focused on the solution being complex that they miss a simple solution just because they never considered the solution could be simple.
It’s incredible that for centuries after Archimedes created his screw, no one thought of the reverse until this guy..
Round of applause for him
Spinning a screw is easier than spinning a tube.
@@ElectricityTaster You can spin a tube in its center, or on multiple points instead of just the ends, relieving the screw's center of stress.
@@nrdesign1991 yea, it's better, but also more complex. A screw is simpler.
"After a night of smoking dank weed I wrote down the sketch of this idea"
I would assume people have thought of this before, but never really seen any reason to use it. Why rotate the cylinder of you can rotate the screw would be the common conception.
“It’s different, it’s useful, and if it helps people that’s great!” A set of standards and morals to live by right there! Brilliant video and well done to the inventor!
Assuming they don't charge huge licensing fees. If they patented it to protect the concept from being locked down in patent litigation, then great! If they patented it to profit from patent litigation at a cost to technological progress (and potentially lives where this could prevent explosions), not so great. Which it is wasn't made clear in the video.
@@himselfe Profiting from your invention isn't evil. In fact, it encourages technological progress.
@@AllUpOns you might want to read what I said again.
That's just being an Aussie ;-)
@@himselfe Patents, in the US at least, only last 20 years. During that time, you can and should litigate any copy cats, those don't help technological progress. If you want to save lives you have to pay for your life-saving equipment like anyone else, infringing on someone else's property while doing it doesn't make you the good guy.
"It's different, it's useful and if it helps people that's great" What a great mindset for inventing
I've driven past this store a couple of times, never assumed there was such an interesting story inside
This makes me wonder how many other little places may hide interesting stories.
everyone's got a story :)
What I like about this design is that it's not only the grabber at the bottom, but the friction of the grain against the pipe sidewall that makes it push up the incline. By that logic, the normal force against the pipe wall would increase as the rotational speed increases due to centrifugal force increasing. Clever!
Yes! Very clever
sorry if im misunderstanding, but can anyone explain how the planar horizontal centrifugal force contribute to the upward vertical movement of the particles? Is it because the net force is up after accounting for the normal force from the screws surface and adding that to the friction on the walls? also @SmarterEveryDay, you probably wont see this but been a big fan of your channel for a very long time, just playing devils advocate!
@@aruhtaz friction can be described as the normal force acting on an object multiplied for the coefficient of friction. the coefficient of friction between two object is constant, so you can mostly ignore it. the normal force, however, can change. force is mass times acceleration, so the faster the grain moves the harder it presses against the walls of the tube, and the harder it grips the tube, the more friction is generated. this creates a positive feedback loop where the faster the tube is spinning, the faster the tube can spin.
@林 No.
Centripetal force.
When I was a kid, I was always disappointed that all of the “simple machines” have been invented already. The kid inside me is jumping up and down in glee.
Everything is obvious once you know it.
@@adamsbja "hindsight bias"
People have always thought that!
I know what you mean. Now I can see that there are still plenty of "easy" things to invent. Thinking of a good one though and then making it is really hard.
Well, this was invented before you too.
I mean, in retrospect, that makes perfect sense.. But I'd never have come up with that myself, that's brilliant.
Just like most mathematical proofs (in my opinion)
That's how it goes with most very clever devices and principles, in my admittedly short experience
Galilean relativity, innit!
I'm still struggling to find out what the advantage is..🤔 Is it better, or just a clever different way?
What's so bad about turning the auger screw, why is this better than a stationary tube and a spinning auger?
@@A-Milkdromeda-Laniakea-Hominid I agree, I also thought it would make little difference, but upon further thought, it allows you to have a more sealed system as there's nothing that needs to connect from the outside and in to move the screw, and the casing
agitates the bulk better than a shielded screw, so I reckon it loosens the material more easily and packs better as a result. But I still think it's black magic, there has to be a limit to high tall you can make these things, as at some point the resistance in the bulk in the hopper can't overcome the resistance of pushing the material up the screw and will stop feeding into the case, no?
And the main advantage seems to be you can add as many bearings to the rotating part as you want and none of them can be contaminated by the product. Try that on the screw conveyor.
Id still say the *main* advantage is it doesnt create dust. That is what made this thing so intriguin to so many and is its most important boon; as it grtly decreases risks of things like corn dust and sugar dust, which can create huge catastrophic injury lawsuits bcuz of how devastating, and hard to stop once they get started, they are.
Ofc the cases where such happens are where the dust isnt maintained, but this makes it so they dont have to do nearly as much to maintain the dust bcuz they arent kickin up nearly as much.
Also, if ya wanna see an example of such devastation, check out vids by the USCS which tells stories of industry accidents caused by things like this. They have one on a dust explosion that was caused by **several inches** worth of unmaintained dust allowed to buildup; they were even warned three times prior but failed to maintain the dust and it caused the whole place to go up in flames so damn fast that no one inside when it started was safe from it.
Wow. That too!
Thank you - I was wondering about this, the screw model seemed equally good but indeed I could imagine that with this you can keep any moving parts away from the material (or water!)
Put your bearings and rotating parts at the top of the screw not the bottom?
@@jl3423l4jsdf That's fine for a very short conveyor, but once it gets longer the central rotating screw will start to whip. The faster it rotates, the shorter/stiffer it has to be to avoid this.
Mr.Olds seems like a genuine character. Loved hearing his story.
This was invented in 2003, I can't believe it. It's so motivating knowing that there's still simple innovations that have been yet to be discovered.
As someone on a constant journey of experimenting and expanding experience by creating models that tell me things I wouldn't have known otherwise, I can state that the simplest ideas, which incidentally have the broadest range of benefits, generally take the longest time to get around to. Part of it is the habit of thinking one knew what would happen, so why bother. Those moments when one does finally get around to something of this kind and then gets thoroughly mind expanded by all the unforeseen sides of it, those are mighty fun...
Humans allegedly never once put wheels on luggage until the 70s!
Read the patents closer, it's related to specific uses. There is much old non protected prior art that related to transporting fluids at an angle by rotating the housing. It wasn't used much but was unsurprisingly found in train designs for a very short period. These guys have that sort of background so I'm not surprised that they made something along that train(haha) of thought for this purpose.
wait it really came out in 2003?
How do you know this wasn't the last undiscovered simple innovation?
Serviced one of their machines at Boral, (making compressed fibre sheet).One point they don"t say about what"s the advantage of turning the outer tube VS turning an inner screw,is you don't need the fixed screw to be the full length of the tube,once material has travelled up a couple of metres of "screw",it keeps pushing up ,by the new material been fed in through the base.Where as a turning screw system needs the screw to be full length to carry the material up and out.
Thank you, I was wondering exactly why that was!
Clever...
Why does the turning screw system need to be the full length, though? Won't the screw continue imparting force on the grain, causing it to move upward and pushing up the grain above it that is not in contact with the screw?
@@Shadowmech88 Willing to bet because it has to work against the sides of the tube it's housed in as well as the weight of whatever it happens to be lifting.
@@Shadowmech88 I think part of it is that even if you didnt have the screw being full length, you would still need the center supporting pole to be full length, especially if it were spinning really fast. If it was only supported by the bottom it could easily be off balanced and be a disaster. And for long lengths you can support the outside for the tube with no internal obstructions like what may be necessary for the spinning screw.
The fact that it took over 2200 years for this to be developed tells me that either someone's design was lost to time, or humanity really got stuck on a design that works. Either way, incredible amounts of Kudos for Mr. Olds to figure this out.
Looking at this we should really invest in square tires.
......how old do you think civilization is?
@@iwanttwoscoops Archimedes invented the screw in 250BC, 2,272 years ago.
@@iwanttwoscoops 2200y since Archimedes wrote about the screw elevator
Maybe it sort of needed the kind of paradigm shift of thought that was popularized by the theory of relativity and the whole frame-of-reference thing?
Also, how many people work with these kinds of things, in-depth, anyway? This is putting the dangerous moving part on the outside. You may need deep practical understanding to realize the advantages of doing it this way might outweigh the disadvantages vs. turning the screw.
I'll take your word for the dust reduction properties. But to me, the 'oh wow would you look at that' moment was when Tom turned it backwards and the bird seed just sank right out of sight! Almost like magic how a slight turn to left or right makes the product just fill and drain along the tube wall with almost no internal agitation.
its all in those little fins at the bottom of the tube. Turn them one way and theyre forcing material into the thing and making it climb the screw, turn it the other way and it's actually pushing away the material in the bowl, giving the material in the screw space to fall into. If those fins werent on the bottom the thing would do nothing. Very cool invention and a very simple principle.
@@SpydersByte yes, that's the key that makes it easier to understand. When you're turning the screw, the bottom of the screw thread acts as a scoop, when you're turning the casing you need to replicate that part
Didja know even concrete dust can explode?
@@kurtsnyder4752 i mean even my ass explodes from time to time
Looks like a bug, the devs will patch it soon.
Its not a bug, its a feature.
army6669990101 it just works
don't worry it's satisfactory
Go back to school kid, the internet doesn't need you.
@@noreason2701 How about you go ruin someone else's day?
The title of the video of sounds like a Roald Dahl book and that is adorable
it totally does hehe
Damn, now I want to read the BFG again.
Wow! You're right!!
@@LSPD1909 I love how that book basically ended with "And then the authorities were actually useful for once, and Britain did an X-COM."
Joshua Sweetvale I haven't played X-COM- do the villains just get dumped in a pit somewhere?
As someone who has spent 10 years in pharmaceuticals, including handling of bulk powders, I have never seen this device in my life, and just seeing this, and the amount of days that could've been made so much easier, astounds me!
May I ask how rotating the tube is so much different than rotating the screw?
William James wrote a whole book on it.
@@MoritzvonSchweinitz I believe it's due to the fact that the air in the tube remains static as opposed to a rotating screw. The gentleman in the video explained that this is beneficial when handling powder because less dust is kicked up.
@@MoritzvonSchweinitz Also the scoops in the bottom are efficient at packing the material
@@MoritzvonSchweinitz Less airborne dust production.
My biggest question is: How the heck does something like this not have a Wikipedia page?!
cos 'straya maaate. no one cbf
They're too busy unpersoning undesirables and ret-conning history
@@New-zm5vu what
@@adora_was_taken rewriting history and feeding a certain narrative.
Because needs to be in too many news article to be allowed
Ive got notebooks with loads of sketches and mock-ups for invention ideas that I havent done anything with because Ive thought “Ah, 7.8 billion people alive today, and countless more who’ve come before, surely someones built this already”, but this inspires me to rethink that and pursue them.
The simplest things make the most interesting stories.
@@zhoutongyang5185 -_-
You’re sneaky. And lovely.
Sub title:
A new twist on an old idea
this is brilliant and i love it
Isn't it an Olds twist though
I'd go with "an Old twist on an old idea" Just to confuse people.
Clever sir! Well played 😁
Ba dum tssss
I had to do a double take at the start of the video because it looked so familiar and then I looked at the description and realised that the reason it looked so familiar was because you were in the town that I grew up in!
Maryborough, where the locals invented inside out screwing :P
It keeps the dust down, you see.
(People must get so confused by this pub story)
Me too!
@@roidroid please elaborate, i'd like to hear more.
Ataready some say roiddroid still hasn’t elaborated to this day.
@@IDFK7477 The whole thread is probably bs. The size of the town is less than 30,000 and the place name isn't in the title so it would have have to be sheer coincidence. I go for the simplest explanation.
Everyone loving the design.. Me too ofc, but I'm more fascinated by this humble guy. He came up with such a great idea and there he sits saying if it helps ppl, then it's fine.
What a legend.
When worldwide clients ditch their old machinery that works just fine for your product, you are a true inventor.
The joy on Toms face as he's spinning it at the end of the clip is great. The simple genius of the idea is just super satisfying to see in action
Methinks Tom has a new toy
@@pennywayne1531 Methinks I need this new toy.
I remember a Tom Scott video a while back, about boats crossing rivers through the power of the current. I remember Tom mentioning at the end that it all made almost intuitive sense once you knew but people generally didn't think of it. I remember him then wondering what else was waiting to be figured out that everyone had just... missed. And here we are with Mr Olds' Elevator - something everyone just... missed. Remarkable.
What's the bet something is physics, like anti gravity or FTL, is also something everyone just... missed?
@@SoMuchFacepalm eheheheeeheeeee 🤫😉
@@SoMuchFacepalm There's at least one sci-fi story like that, where other species figured it out in their version of the 1200s or so.
The kind of innovation that could have been made and used hundreds of years ago if only someone had thought of it!
They might have but then went WTF was I thinking this won't work.
Which is why we want as many people as possible sound of mind and body.
Robert Skitch No they’d burn you at the stake for witchcraft if you show them this “technology”. ;-)
BBC600 no they’d probably not be that surprised by a spinning tube and cork screw. Just would need some explaining
This is still one of my favorite videos on this channel (along with the zero-G testing tower). Simple, elegant, innovative, just an idea that hits all the right spots.
i adore how simple it is
"if you are confused by that..." YES YES I AM
I was hella confused
It makes a lot more sense if you look at the bottom part, 4:55
@@MrYoursoup exactly.. It's the scoop that makes this work.. So it's not fair to call rotating the cylinder the same as rotating the screw.. As Tom did
Think of the screw as a spiral staircase. The scoops at 4:55 force grain (or whatever) into the bottom of the staircase and continue feeding more in, so the grain has nowhere to go but up!
@@ktaragorn Actually, I think it is fair to call it that - with a regular screw, you need some kind of casing and the screw forces the things you're lifting against the casing. In this case, the casing forces it against the screw, so it's just the other way around, as you'd expect.
A true craftsman. The world will never not need people like him!
I think the Archimedes screw is just such an old design that nobody’s even considered trying to improve it. Because *of course* someone already tried centuries ago, surely?
I think it's because Archimedes took out a 3,000 year patent and no one wants to anger the ghost of a 2,300 year old brilliant inventor who used to be able to set fire to distant ships and pick up and throw around the ones closer to him.
yep. everyone else thought it was already done.
Nah, I'm almost certain this design would have popped up a few dozen times in the past except unlike Mr old here when told "that'll never work" they let the idea die.
@@FoxDren Whereas, i'm almost certain this design has never appeared before. What metric should we use to decide who is more likely to be right? I'm going on the fact that no one has applied for a patent on a similar design before, what are you using?
@@maxnaz47 He's not saying that this has been done before, merely that someone has probably thought of it but never bothered to try it. It's just common sense. History is full of people discarding brilliant ideas because they didn't believe they would work. Even Albert Einstein was guilty of it with his cosmological constant. And that aside, citing patent law isn't a good way to argue that this design hasn't appeared before. Patent law as we know it has only been around for about 500 years. The Archimedes' screw has been around for over 4 times as long, meaning that for a majority of its existence, people couldn't patent variations on it even if they wanted to. For another, not every idea gets patented, especially something this simple. Most people may not even realize it's worth patenting to begin with. It's entirely possible that multiple people throughout the past 2,000+ years have come up with this design before, and that for one reason or another the idea just didn't spread. You can tell just from reading this comments section that the average person can't see what advantages it has over the traditional method.
These kinds of innovations are why I enjoy humanity. There's always a new perspective yet to come. From youth to elder. I'm stoked to show this to the team I work with to hopefully inspire them to keep thinking of ideas for improving our shop. Revolutionary ideas can come in the simplest of forms
Truly a class-act, and a totally old-school inventor! I love it! I love small mechanical shops like this.
I was so sure that we were going to hear how this was invented like a hundred years ago by this dudes father. Then I realised that this was a recent invention. THAT IS AMAZING!!!
Spilling all those seeds: *you really screwed up*
This. This is quality punnage.
My quite rage; I hope you're proud of yourself.
Ba dum tsss
Jeez, the Olds wear their name very well! The older brother is from 1925, and Mr Peter from 1930? O__O long-living geniuses!
I've always said curiosity keeps you young.
@@soentrueman7944 curiosity can't protect you from being stabbed 48 times
@@orang1921 it can if you use your curiosity to learn self defence.
@@soentrueman7944 what about 49 stabs
@@orang1921 What *can* protect you from 48 stabs and more?
Also Tom, you should do a series on great inventors of today - more of this kind of stuff...individual tinkerers in their sheds and workshops creating wacky stuff. I'm sure there's a whole world of people and inventions out there waiting for a chance to show off on your channel!
This made me really happy somehow.
I really love stuff like this. Although far less efficient, the “old days” of workshops with a bunch of highly trained people working there, and run by steam engines has a certain charm about it. This place is kind of like an up-to-date version of that. To see it produce an important invention is even more awesome!
If Archimedes was so great why isnt there an Archimedes II-
Holy corn grains
If Archimedes II was so great why isn't there an Archimedes II II?
@@bamberghh1691 its a joke.
spectacledllama they know
@@llama_v2 whoosh
If Archimedes was ao great, why isn't there an Archimedes Archimedes.
A fine example of why progress isn't a linear iterative process, you never know what others will spot or miss
This is one of the few things that really would make a time traveller near instant millions a hundred years ago.
The idea came to him in a dream. Love that.
Some years ago I came to a lecture where they were talking about a new design for hidding magnetic fields based only on classical electromagnetism...
Turns out there are still things, phenomenons, mechanisms to exploit in what they call classical physics.
I'm an engineer, thought I had seen just about everything. This video was a very pleasant surprise, thank you Tom, I totally wasn't expecting that!
I love these videos because the guests always care so much about the topic its just amazing to see.
You forgot to mention WHY it's an improvement over conventional screw elevators through. The main advantage is that, since the screw itself is fixed, it moves material much more efficiently upwards because it doesn't have to turn the screw against the resistance of all the grain being pulled down by gravity. It also allows for a large clearance between the screw and the casing cylinder, reducing friction and damage to the grain or equipment.
Also the screw doesn't have to go all the way to the top
Tbf the inventor did mention that when he was describing it regarding the part about explosive dust
When I saw the title I was thinking of the car and was wondering when the guy had time to make an elevator. Yes, I was thinking of "Olds Motor Vehicle Company" by Ransom E. Olds in 1897. Two smart guys.
What a remarkable story about an outstandingly original piece of intuition. Hats off to Mr. Olds and kudos as always to you Tom, for digging out another fascinating idea for a film!
What I am still not clear on is - What is the advantage of turning the tube, rather than the screw inside?
Ian Cook Because the material being lifted is packed against the side wall there is less friction, dust and air mixed in when lifting. All of this is very important for materials, when their dust is present, are known to combust when heated in the presence of air.
Its a full flow system meaning that no air is inside the tube (other than the air between the grain, or sand etc...), this means that the material doesn't get agitated as it would in a traditional screw pump, causing massive amounts of dust which can be extremely dangerous depending on the material. So basically, dust reduction.
It’s explained from 2:50 onwards.
I'm not convinced. (ID: ?v=eiusOhH1dz0)
@@robertreitze3192 I dont think theres any difference. Thats why it doesnt make a lot of sense. The only benefit I see is that having the tube rotate its trivial to add those scooping side pieces on the button. if the spiral was the rotating part that might be harder.
"It's not about having a good idea, it's about making it real" Engineering and art have so much in common.
I'm an engineering student, but I fear that I lack the creativity and ingenuity to accomplish anything significant in my future career.
@@porkeyminch8044 Well that's a reasonable fear to have. But you don't have to be very creative to work as an engineer. If you don't have a lot of creativity you can always work for standard stuff. You wont be a genius but you don't have to. You can also work on your creativity. It's a skill like any other, work and make it grow. You'll probably learn ingeniusity on your studies. Don't worry too much, just work on it and it will be fine.
Coming from a farming background and having had machines mobile machines for cleaning and processing corn for decades find this incredibally interesting.
I wonder how well screw would act regarding self cleaning when seed treatments were applied and if the wet and slightly sticky material would shear off efficiently?
Think it may depend on bushal weight of material, size of seed and pitch/size of screw?
Seems like it would work best with very dry material. The scoops at the bottom generate the compression to lift the material, and if it couldn't "flow" into the scoops you might run out of compression. Mumble, mumble, relationship between weight of material/ ease of "flow"/ rate of spin/ friction in tube...
Anything sticky might not work as well, if at all. I'm an armchair engineer at best though, my two cents.
.
@@jgcelliott1 Agreed, though there's another downside: you can never lift all of the product this way. Since the lower portions push up the higher ones, enough of it needs to always be accumulated at the bottom in order for the elevator to work.
Its crazy how I can recognise a video is in Australia without being told just because of the mannerisms and the outdoor ambience.
As per usual, you have released an interesting and wonderful video on a thing I had no idea about, and now I don't know how I'd never heard of it. This is an incredible system, and I'm so curious as to what else is out there that people like Mr. Olds haven't noticed yet...so much might change when we find it. I can't wait to see more from your channel Tom, and keep finding wonderful things to talk about!
Just when you think there is nothing new under the sun someone like Peter Olds decides to reverse a 2000 year old engineering principle, by Archimedes no less!!, and guess what, it works. And it works in ways that Archimedes hadn't thought of. Check out some of the Olds Elevator licensees web sites around the world to see some of the most interesting and challenging applications for this truly unique technology.
This is amazing to me. It's easy to imagine every simple machine has been created over the years. Clearly there's always room for improvement even at the most fundamental levels.
Great video and invention. I think there’s an important difference between a conventional screw auger in a tube and the Olds elevator - not just a difference in “point of view”. In the conventional auger, the screw thread moves w.r.t. the material (and would do so, and elevate some material, even without the tube). In the Olds elevator, the screw thread is naturally stationary w.r.t. the material and relative movement only occurs because the tube drags some material along as it rotates.
Note that there are screw augers where the tube rotates at the same speed as the screw (discussed in the background of the patent). There is no relative rotation between screw and tube in these - this shows that it is the relative rotation of the screw and the material that causes elevation.
TLDR: Olds elevator is not equivalent to screw auger; relative rotation of screw and tube is red herring; Olds elevator works because tube drives material around screw so material follows thread upwards
"It's different as usual and if it helps people, that's great."
What a great guy!
Spinning e casing in a sealed system is easier than spinning the helix as anything gear, belt, ect can spin the casing from the outside of the casing. Amazing it took so long for someone to actually realize and action on it.
After i've seen this, i've forgot the exact title, and the channel, i only remembered the machine's category "screw conveyor", by which it couldnt be found! So please next time maybe at least in the description mention the exact terms, and definitions so it can be found easier, thanks. The video was great.
Aaaargh Tom has graced my homeland with his presence and I MISSED IT, which I knew perfectly well would happen but which saddens me nonetheless -_-
What is your homeland
@@muneebmalikvlogs4127 Australia :)
@@therese294776
Oh
Same feeling when I realized Tom was literally down the block from me at the Fascination game video from a couple months ago
I know the feeling, I live about halfway between the tree that owns itself and the high school with golf cart parking. Near the city where every household is required to have a gun. He's come close so many times
*I can always rely on the elevator to lift me up when I'm down.*
@Avery St. Clair For some reason I read that in Big Clive's voice...
The Way Mr. Old talks reminds me of being a kid at my grandpa's place, pure nostalgia
Im very happy he got the patent for it.
Im glad to, he didnt get screwed
This is still among one of my favourite vids of yours. Its such a cool story and the amazement you show for this interestin novel invention is genuine and engaging
Wealth of knowledge on this channel. Thanks Tom
Excellent video!
I would like to point out the Olds Engineering is located in Maryborough, Queensland, Australia. As there is another one in Victoria, Australia as well.
Thanks Tom you take places I can no longer go. You always look like you're having a ball, enjoy it, it's a one way ride.
What a delightful gentleman Mr Old is. Well done sir and thank you Tom for revealing his device to us.
Olds Engineering is a place of wonder. All they do is done well and there is no limit to what these guys can achieve especially when it comes to stuff no one else wants to do. Along with Bundaberg Foundries (another wonderland for an engineer) they are a gem of Queensland manufacturing.
Honestly, when I think of the usual version of this sort of lift-with the rotating screw-I'd always thought of the movement as being the screw/product relative to each other. Perhaps that's how others have thought of it, too, and why simply no one thought of it for so long. This is actually kind of an eye-opener to the relationships involved in letting these types of lifts work.
He's finally migrated from New Zealand to Australia. Starting his long journey back to England.
The original Archimedes Screw is used primarily for liquids, which is why it has to be installed on an angle, so the pockets of liquid are carried up it. It's operating principle is gravity - each 'glob' of liquid stays in its 'pocket'. (That would also work for a flowing solid like grain etc). As a matter of constructional convenience some very large Archimedes screws e.g. in sewage works, are built with a rotating screw inside a fixed outer casing, but they still use gravity as the operating mechanism.
This elevator looks very similar but the mechanism is quite different, it relies on relative motion between screw and casing and friction within the material being conveyed. As Tom says, there is no difference whether the screw rotates or the casing rotates. (An original Archimedes screw, with the screw fixed to the housing, would not work if stood vertically).
Fascinating though, I'd never seen or heard of this before.
I wonder if the Hills elevator has been tried with liquids?
@@ThreadBomb I'm not aware that it ever has. I think it might prove too inefficient, since it would rely on viscosity to make it operate (just as the Olds elevator relies on the forces between the grains) and viscosity absorbs a lot of energy.
@@cr-yi7ep Maybe it would be a good solution for some thick gloopy, chunky liquid, but I don't want to think too much more about that. 🤢
Brilliant. Good old Aussie ingenuity.
Awesome design, Mr. Olds! Clever use of physics.
i have wondered why the archimedies screw isnt used as much. glad an upgraded version is going the rounds.
The main use I can think of is for dredging bodies of water.
I think the general problem with archimedes screw is the same as with Wankel engine: sealing the moving surfaces is just too damn hard in practice. You either have too much friction, too much leaking or too short lifetime for the seals.
Who knew we have yet to realize the full potential of simple machines???
You have and are a gift. Thank you, Tom!
What a legend, and a family of legends
"Corn dust is highly explosive"
Noted
All flammable fine grain materials are highly explosive as a matter of fact. Flour mills have been blowing up since they started using primitive machinery to grind it.
I was more surprised by Sugar.
@@rasta77-x7o sugar is commonly used as a fuel in explosive combustions
@@rasta77-x7o google "Sugar rocket"
It's not a high explosive, it's a low explosive. Are you not following Tom Scott's videos?
Tom, welcome to Australia. My family and I love your videos. Thank you. I hope you enjoy your stay here. Bear in mind that we're experiencing the worst drought in living memory. It's always a "wide, brown land" (Australian poetry reference) but not usually _this_ brown. Also, anything with more than four legs or less than one are best left alone :)
How no one has offered you a Mr. Science type show to help teach kids about things in the world they'd never get to know about otherwise, is beyond me.
YES! He really does need to revise Nickelodeons Mr. Wizard Show!
Why?
Tom Scotts video are already high quality.
What could "an oldschool TV network" do to improve it?
@@DarkNexarius Do you think every kid in the world uses youtube? More people watch television than youtube every single day of the year.
That's... what this is.
@@NoConsequenc3 It is a youtube video not a tv show now think monkey think
Remarkable and inspiring in equal measures.....Brilliant!
Very cool. Thanks
Don't even need to spin the whole cylinder. Just the scoops at the bottom.
*Next video:* Mr Olds' remarkable cobblestone generator
*Tom:* _This took a while to get my head around._
_Visually cobblestone seems to be coming out of the thin air. But from a physics perspective, inside the machine, lava meets with water to..._
Bruh
I love watching smart people doing great things and be humble about it!
When you asked how people didn't figure out this device I remember a question nobody around me has been able to satisfactorily explain "Why did it take people so long to invent the steam engine?"
The _Idea_ of using steam goes back to medieval torture designs but it took literally a thousand years to put a fan on top of that steam and harness the rotational energy that it produces. You even had the circular drums prisoners were forced to walk on to generate movement so the idea that something spinning can provide energy wasn't unheard off but it would take until around 1813 (According to wikipedia) that the steam ship was invented.
When ships were the most important part of any kingdom with trade and military might surely people would have been looking for ways to advance ships the same way people are looking to advance encryption or hardware in modern times.
Relative motion at its best - rotate the screw, or rotate the casing, it's all the same. Deceptively simple, like all great inventions!
I think it still needs the scoops at the bottom, though, no? If it were JUST a casing rotating, then yes, the screw is "rotating" if you look at it from the perspective of the casing, but so is the material at the bottom, rotating away from the screw. You need the scoops to force the material to spin with the casing and get it going up the screw.
The question I have is:
What's the difference? What does rotating the casing do that rotating the screw doesn't? Why couldn't they just rotate the screw? That simply not covered in this video.
I mean yes, it's neat that you can get the same effect by just rotating the casing... but what is the point of doing that? What advantage does it have or what does it do different in comparison?
@@mementomori5580 to my understanding the issue is getting the screw to scoop stuff enough, with the casing rotating the scoops at the bottom grab more stuff to move and therefore can move stuff more easily
_This_ is why I want to become an engineer, when I’m older.
Archimedes would be proud.
Cool! Me too! What gave you the idea?
Imagine how many things there haven't been discovered yet even though it's like right in front of us
Simplicity is the cornerstone of brilliance.
What a bloody genius and a gentleman to boot!
"In the USA they were calling me Archimedes II"
An extremely rare example of a great pun.
Rich Moore where is the pun?
@@RedHair651 It's a pun on "Archimedes Screw" which is the name given to the original screw design that the new one is based off of.
@@stunthead not only that, it's a two, near to "tube", also, II looks like a tube as well
Sorry to be that guy but these are not (great) puns... For puns to work they need to have a dual meaning in the sentence. Calling the inventor an "Archimedes screw or tube" does not work. Plus the word Archimedes is already related to the screw, so no prizes for putting them together.
@@jogabonito8989 oh, you're no fun. -pythhon?
puns are not just homonyms. homophones are also puns, ore pseudo-homonym/pseudo-homophones
also, the 'II' kinda looks like a pipe (which is), 'two' sounds like 'screw' with having the 'w' sound(they had the same IPA), and is also a 'second generation' archimedes screw.