Vacuum Rocket
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- Опубликовано: 27 сен 2024
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Rockets with failing o-rings give me anxiety...
Oh god, I just realised it
Is ur profile pic an octaweb from a falcon 9?
@@nerfingdodos2707 Yes, it is. "Petolinnun peräpää"
Challenging stuff(pun is intended)
I bet it had more to do with the 3d printed section than the o-ring leaking, tbh
Was fooling with a 5-ml syringe once, decided it would be fun to block the end with my thumb and pull back on the plunger. When I released the plunger it sprung back and made a jolly sound. That was good fun, so I figured the same thing with a 60-ml syringe would be 12 times the fun. It wasn't - when the plunger hit the front of the syringe it drove the luer-lock taper into my thumb, cutting a perfectly cylindrical hole into my thumb. Bled like a stuck pig and took weeks to heal, and hurt like hell too.
0/10, would not recommend
Scalability can be a “bitch” in many scientific endeavors.
Lucky me I only got 30ml syringes, did the exact same thing, but these don't cut you, only hurt real bad XD.
Lmao 12x more fun😂
Wind up with a air embolism becareful
@@nicolashaller5863 Yep, can relate. I think it's a learning step for any kitchen scientist that got hold of syringe:
I wonder if I plug the end and pull the piston will it slide bac.... MOTHER FAAAA!!
Now if the syringes had needles and the ceiling had a dart board...
*BRILLIANT!!*
😊😊😊😊
That's kinda what syringes are: with needles
What about a "human test subjecy"
That thing would be illegal in Europe especially in UK
Maybe too dangerous??
Ha! Have you seen my plunger vacuum cannon videos? I never thought of launching the cannon itself.
Hey Ben!! Yes your videos inspired me to convert the rocket into a cannon haha! I'd like to build a cannon as good as your setup to possibly launch a projectile with 'fold out' fins and a parachute system. Would be cool to see how high it could go! Thanks
Ha! Was just going to recommend your videos but you beat me to it.
smooth self promote lmao
NightHawkinLight yeah I saw that episode recently it was really cool. I thought of it when Tom mentioned vacuum cannons.
Great channels guys!
Channel name
"I can't take my vice outside"
yeah I keep my vices indoors, too.
Get a room! ...oh, you're already in a room. Carry on.
*muffled scream, sound of rustling chains*
Yeah, it's vice to keep indoors.
Just some good advice.
i like turtles 🐢
This needs a handheld pistol type frame!
he's in the UK and there cucked. so someone else need to do that
@@GenBumbleBee lol fuck off brainlet American
And using syringes with needles (for better aerodynamics of course).
@@jack91405
Yes! A "syringer"!
RUclips: "It looks like a gun! *DEMONETIZED!*"
I love how you always sneak the science into your projects man :D
Umm... scientifically speaking, it's not a rocket.
@@donjones4719 could you elaborate on what that has to do with @Integza's comment?
@@maxk4324 The clip is titled 'rocket', and he uses that term for the syringes launched at the beginning. In scientific terms a rocket is something propelled by expelling mass to provide thrust, not just anything launched vertically. So, the most important part of the science is missing. Yes, I know Integza is referring to the diagrams, etc. And Tom S isn't trying to be a science show. Just wanted to point out I can't give him the full credit for science Integza did, hopefully in a mildly humorous way.
Yeah, so gay, iff you ask me, homoerotic.
@@donjones4719 ehm, what
I like at 3:42 when it launches you can see the water condense as the pressure increases
Ben Stewart Maybe there’s cavitation in the condensed water that gives a huge energy boost with the 10cc syringe. With the high speed camera in total darkness he could look for blue/UV photon emission. Water cavitation creates an incredible amount of heat that results in photon release. I’m curious if that might be happening and resulting in a huge energy boost. I’m not sure of the mechanism of translating that into kinetic energy. So I doubt it. But I am curious?
@@msmeyersmd8 cavitation directs the surrounding energy to a much smaller point, making it more effective in destroying the containers the vapour is in, but it doesn't produce energy of any sort.
Since the syringe is an enclosed space, any cavitation if significant would only contribute to shattering of the syringe and not to its movement since its an internal force.
cool catch! I was mostly fixated on the oscillations in its movement after release.
Some anti-vax kid walking
Flying syringe hits him in the arm
Mission Accomplished well done
One of those sleep juice syringes work from far away put the med in that and even if he pulls it out hes got that shit in his immube system
Although I'd rather target the Anti Vaxxer kid's mom
@@MADMAX7330 Nah vax the kid. They shouldn't suffer for their parents ignorance. Sod the parent tho lmao
@Steve Ausrin Ka-boommmm!
This isn’t anti-facts to be honest.
'I dont really plan to put a hole in the roof of my shed'
No one does.. but thats how it happens :P
........RUclips videos from America- “I’m going to dump 500 rounds through this .50 caliber machine gun into a pile of watermelons”
......RUclips videos from UK - “plastic syringe rocket thing in my backyard”
So dude, after he said 110 mph I though "hmmm, wonder what would happen if you turned it on its side"
I enjoy both;)
balanced, as all things should be
It definitely depends on the 'Muricans you watch. ruclips.net/video/0DKWSXstXuc/видео.html I do wonder what the melons ever did to the nation though.
They were giant GMO seedless watermelons with a terrible bland taste. And no nutritional value.
Those melons deserved what they got. 👍🏻😎🇺🇸 ‘Merica
I would suggest eye protection for anyone who attempts these especially with children. Love that you do the math behind each project.
@Angus Rae why
@Angus Rae what is your problem asshole. You're like seven go back to playing with cars.
Gives new meaning to the term "shooting up."
I like the slow mo shots and how you can see where energy is "wasted" and where it could be improved. Like the wobbling or the bouncing when it hits. Not sure how you could prevent those but it's still neat to see as in real time it happens so fast you would never see any of that.
People: designing high pressure water rockets for decades chasing higher and higher altitudes.
Literally no one:
Tom Stanton: I wonder if it works in reverse?
That rocket clearly says single use, but you've launched it several times.
Make the projectile with 4 retractable wings made like a quarter of a sphere that rotate into the body, and are pushed by springs out right as the tube goes missing and the rocket deploys them to stabilize!
Agreed. I was thinking along the lines of retractable fins for stability.
FINALLY!
I saw the story and I was like WHAT ABOUT THE VIDEO!!! Hey little teaser!!
"It's all fun and games until somebody loses an eye!"
An excellent demonstration of how it's not the vacuum sucking, but the air pushing from the other end.
If it was a suction from the vacuum, the syringe would not go flying, as equalized energy would be achieved as soon as the vacuum is gone.
You can try this yourself with a rubber band and just about anything light enough, like a piece of lego.
Stretch the rubber band, place the lego in the path of the rubber band and release. The lego goes flying.
Now stretch it again and place the lego right at the point where the rubber band is no longer contracting. The lego barely moves. This is because all the energy has already been expelled at that point and there is nothing left to transfer over to the lego.
I'd love to see more of that vacuum cannon idea; I'm sure you could make some huge efficiency gains with a few tweaks.
Hell yeah! Vacuum cannon series!
m s Better yet: Multi-Vacuum Rocket Revolver. :3
2:37 Tom is awesome. I love how he teaches by showing his failures.
Thanks for posting this Tom. I printed out the parts and had some fun with my kids this afternoon.
One problem I found was that the syringes I used just stuck in the launcher, and the trigger did nothing. Still had a lot of fun though. Thanks for posting.
Imagine all the pranks you can pull in class with this.
This reminds me of Peter Sripols alka setzer rockets
No it doesn't.
One potential limiting factor in the vacuum cannon rocket is the release speed of the plunger. As soon as there's any gap between the plunger and the body, air starts rushing in, but slowly. So you want that gap to open as quickly as possible, increasing the gas flow rate which increases the pressure, which increases the force on the projectile, and since the distance of the projectile is sort of fixed, increasing that force is the primary way to deliver the maximum amount of work, energy, into the system.
When you make a dedicated vacuum canon video try ammunition with a discarding sabot, it will help stability and speed
tank projectile vibes
APFSDS
For the vacuum cannon you could have the projectile to have fairings which could create a sufficient seal but could separate once past the cannon reducing drag. Theoretically.
Has SpaceX seen this? Seriously, this was a really enjoyable episode.
@Gyf Ketcherside If the recent SpaceX 'test to the max', where Mk1 spewed it’s liquid Nitrogen all over the pad at Boca Chica, is anything to go by, then they might have been watching this video! 😉
Words of wisdom from Norm Abrams - Always wear these, your safety glasses.
6:51 The 'O Ring' always remind the challenger disaster.
Thanks, Captain Positive.
That vacuum cannon makes a brilliant sound
8:35
You can see that there is still air in the system, cause just before the blue projectile penetrates the plastic top it formes a dome!
It still leaks a bit but it might just help pop the tape before the projectile hits it and maintain its speed
The projectile doesn't seal very good to avoid friction. The air in front of it leaked threw.
there is air in the system at the start, before you pull down the piston, so that's there the air comes from
Thanks for this great demonstration of inertial momentum, in action. I used to play with these, back when I was a kid. Loads of fun. Even attached propellers, with retractable blades to the ends to make helicopters, out of them. :)
I have had a project in which i made a 'compressed air bottle rocket'. i see that your blue projectile is indeed somewhat instable. However I had a problem with getting really far. When i shot an unweighted bottle it went fast, but lost alot of speed to air resistance. After a while i made a weighted bottle and that one went alot further. I suggest you look into adding (a bit) of weight to the projectile. Of couse if you make it too heavy it will not get the maximum amount of velocity. I hope this helps.
v = sqrt(2*L*p*A/m), v = projectile velocity, p = air pressure, A = inner cross-section of the tube, m = projectile mass, L = tube length, assuming no friction or leaking.
Increase L until the projectile reaches escape velocity.
I would put rifling on the vacuum cannon to improve stability
You dont even need rifling, which would be difficult to produce, just angled fins, i.e. fletching
He doesn’t even need that, just to make the fins he already has into a hollow, cylindrical base, like a Minnie ball. Much more compact.
just needs a sabot
once again a really cool video.
I have an idea for the vacuum canon :
maybe put the rocket on top of the tube and use it as the seal instead of using packing tape . it might allow less air in the canon making it more effective and you will only have resuable parts.
"something slightly larger" Proceeds to reach down ;)
Clearly the last launcher needs a handgrip and a trigger.
Seeing the piston come to a dead stop at 6:12 is pretty cool.
I used to have syringes breaking like that all the time
@6:50
I would like to add to the O ring leaking mechanism- more than decreasing the strength of the vaccum, the air acts to absorb the energy of impact- converting kinetic to heat.
I would think the air would hurt it more by converting kinetic to pressure and then just pushing the plunger back down instead of the tube up. 6:38 is a great example of what I'm talking about, you can see the plunger move back like 20% of the tube length.
Kid: Mom I want a syringe
Mom: Oh god my kid is on drug *starts crying*
Kid: *confused* I just wanna make a rocket and shoot it high into the air
Mom: *frantically cries* getting high and shooting up oh lord where'd I go wrong
Yes
I used this project and made a rifle-looking gun. i inserted the base, then instead of using normal syringe, i used needled-syringe. then i somehow connected the trigger of the base to the trigger of the rifle, and now i have home-made deadly rifle!
That's super cool! I have recently had a lot fun experimenting with these syringes for different toys.
Hey, I have a question for you.
Why are pistons and their cylinders round? Why can't we have an engine with square-ish "cylinders" and pistons?
I think it is due to structurual integrity because round shape spread the load evenly so that strong parts could be made without using more material
1) Stresses concentrate on the pointy corners of the pistons, eventually eating away the sharp corners and creating leaks. 2) Sealing a sharp corner is harder than a sweeping radius. 3) Machine tools have really hard time machining sharp inside corners, there's always a tiny radius left behind. 4) Lathes and boring machines make it easy to create precise cylindrical shapes (only radius matters) where as square shapes require precision on two different axis (x and y). 5) There are very few advantages in other shapes (packing factor is the only one that comes to mind)
Those are the ones that came to mind, of course there's more to it.
Why not keep the corners round?
Honda built a motorcycle engine with oval pistons to save on width. Didn't work out too well as we still are using round pistons though.
All the stuff above, and probably because it's also easier to manufacture. You can just spin in a a lathe and then drill/machine the chambers and a round shape is going to be easier to meet the tight tolerances.
Tom Stanton: syringe rocket
My Brain: TF2 syringe gun
Same
Sirweedweed nah. Crusader's Crossbow.
@@odysseusinspace9704 yea u right
@@odysseusinspace9704 yea
I built an electromagnetic version of this, tried to hit the resonant frequency of the collapse so that you push off of it, got a bit of thrust but left the project on it's side due to work commitments, great stuff dude!
including time lapses of your prints really encouraged me to watch through the ad
Don't forget to 3D-print an aerodynamic cone.
Nice! I love how deep you go into every topic that you make a video on.
Must resist the urge to scale this up ridiculously large.
the first test looked like an animation with how perfectly the bottle failed to launch
When you do the sponsor thing can you put text on your screen that said “skip to ~~:~~ if you have seen this sponsor a trillion times before”
How do you get to ~~:~~ ? Can't find it on the map. And do we have to skip? The sight of a middle aged man doing that is a bit creepy. 😁
Couldn't really help it. Literalism sometimes causes me all kinds of trouble.
Your content is top-notch mate, I'm' surprised you don't have more subscribers.
Hi there! a little late to party but I think one of the major drawback of the acrylic tube is that it will never let the piston hit the top. In the small syringe you have that tiny mass of air at the top and the piston is able to push the air into that space and make contact with the syringe head. In case of acrylic tube however there is no such reservoir and the trace air is going to decelerate the piston.
I'd really like to see you do more with vacuum cannons
Thanks Tom. Vaseline will act as a sealant and lubricant for that syringe body and plunger. Also, with the large tube, if only the top end separates, after being held in place by a diaphragm or other seal, then the plunger plus small end cap will go a lot higher than it would if you tried to launch the whole apparatus. Maybe a ‘Mark2’ video is called for!
that second test looked like an edit with how little it moved
I love how detailed and physics oriented your content is :]
@6:50 you forgot about energy loss to heat because there was the air that leaked into the chamber when the piston was released the momentum of the piston would have compressed the air inside dramatically heating it up and causing a large drop in the efficiency of energy transfer
In just about every lab in the world, there will be little plastic missiles flying around now.
Imagine an arsenal of syringe rockets being shot at anti-vaxxers
that thumbnail does not give enough credit to how powerful this is
so this is like hyperloop prototype, really really nice.
If you look closely, frame by frame at 3:40, you can see the momentary high pressure causing what I think is condensation. This pressure causes the piston to jump back down. This high pressure is basically the idea behind diesel engines!
The simple answer to the syringe flying is the piston givin the syringe a back hand from kentucky sending it all the way in the air
I think more than the weight, the air leaking is the biggest factor in why it didnt launch high enough.
As the piston reaches the top, it looses most of its energy trying to compress whatever air that leaked in, and you get sort of a air cushion at the top.
Escape the atmosphere with a rocket powered by... the atmosphere.
1:47 large syringe rocket test in 3... 2... 1... PFLOPP *beer opens
This is really similar to how airsoft guns work in a way. Techs who tune high precision guns will alter piston weight to offset heavier, more accurate bbs.
Try to add a flap at the end of the acrylic tube. Under pressure it will be closed and tight, and when you release the pressure should open.
For the vacuum cannon round to be more stabilized and higher, try mimicking an APFSDS tank round (or sabot round).
Toy makers could make a killing out of Tom's channel.
"Don't hover over it when loading the syringe" Me who uses a surgical syringe with a needle on the end: ^^
And now we have a research of lowest friction mtb fork air spring. Please continue this.
no goggles Tom, i imagine that vacuum tube could be bad news if it gave way.
Like the idea though, more fun projects from you, keep it up. The packing tape breaking simply from the pressure before the projectile reached it was a nice feature too.
putting a nail on the end of that syringe would increase syringe launcher damage by 90% but the attachment costs $258
In slow motion, the vacuum cannon looked like a nuke
A very nice tutorial on how to lose an eye. I love it! Keep up the good work! :D
Fantastic job, Tom! 😃
As soon as I buy a 3d printer I'm going to print it! 😃
You did invent an air vacuum jumper or ejection catipult, for sure.
Take the small launcher one step further by printing rounded nose cones to go over the tip. Might slow it down a bit, but you cut out the pointy end accidentally poking into something you don't want
Rockets with failing o-rings is briliant
Nice idea. Now I have to go into my basement and heat up my printer. Will have a lot of fun tomorrow 😀
10 years of studying has tought me this;. that's not your roof, that's your ceiling. "Fiddler on the roof" vs "Fiddler hanging from the ceiling"? Or are you telling me that those years of ardeous studies were, in effect, wasted!? love your videos btw!
how powerful of a vacuum cannon would you need to launch something into orbit, and how big could that something be?
lunch it fron venus because there is 98 times the earth atmospher
orings need a specific relief groove shape to seal the best, and are designed to be lubricated with light weight oil for the best seal. Also, some plastics absorb oil or react with oil which would increase friction. Pretty sure HDPE is the plastic you want to work with, not acrylic. (some plastics that a absorb oil can actually be very good for reducing friction but ive only seen that with metal on plastic interface like in certain types of high end bearings).
Also air has a progressive spring curve, so the larger the air volume the more linear the cure, and smaller volumes have a steeper curve, this would have to be balanced with plunger travel distance... so what im saying is that the diameter of the cylinder is going to play a larger roll in how the kinetic energy is released more so than just air volume alone, or shaft length.
edit- and regarding your cannon design (not first design) what i said above would not factor in to the cannon design, that simply an air cannon which is a much more simple feat of physics.
some serious rocket science going on there!
for that vacuum cannon projectile I'd just make the fins on the bottom rifle the thing so it stays straight up.
vacuum cannon to the moon
The mini version would be a great kids toy.
IT would launch even better if the top was meant to come off! You're staging it.
Great idea! I used to love making little lever-controlled pneumatic arms out of these by attaching tubing to the end of the syringes, then attaching levers to the plungers. Let’s see a syringe-powered robot of some strange kind!!
You always manage to inject excitement into seemingly mundane objects.
Suggestion: you can build a vacuum gun
0:50
"A slightly larger syringe"
Sounds like a vacuum cannon with extra steps.
i think the biggest issue with air in the cylinder is that the energy that would be trancefeered into the the top of the piston ist diverted into compressing and therefore heating up the air inside the piston, onverting most of your kinetic energy into thermal energy.
Yes, and i wonder how it would look in a thermal camera
@@rizalardiansyah4486 depends on how much the tube isolates from heat...
Make the little rocket the shape of an airgun pellet, those are stable in flight
You mean, like a sphere?
Like a diabolo i think
@@rizalardiansyah4486 no, the airgun little bullets that are shape like a rocket, I dont know how are called in english, in spanish are called postones, search that.