The INSANE Precision of The National Institute of Standards and Technology
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- Опубликовано: 27 сен 2024
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Thank you all for viewing the video and taking an interest in metrology. I thought I might add some info relating to some of your questions I’ve read. First, remember that every metrological decision is based on trade offs. There are lots of things we can do differently, but what would be the cost in time, ease of use, complexity, or limitations to operational flexibility. It is very easy to trade one issue for several other new issues if we chose to change an operational decision. Developing this machine over 25 years, I’ve tried just about everything. Some worked, some didn’t. Generally, WHAT we measure dictates how to do it. And the machine needs to stay flexible enough to meet the known and potentially unknown needs of our clients going forward. I’ll add some more detail as I think about how to word it.
I won't have a chance to watch this until later, but I don't want to wait to tell you how much I've enjoyed your videos and how happy (and relieved) I was to see a new post after so long.
Welcome back!
have y'all ever thought of running one of these in vacuum? and if so why? i imagine vacuum would eliminate a few variables. Truly amazing machines.
Wow, been aware of NIST for a few years now, but knowing this makes me proud to be an American! Great job, thanks for sharing this National Treasure 👍💪
@@bruhbruh1606 I used to work with CMMs in a metrology lab, although it definitely wasn't as precise as this. While dust can be a problem with certain measurements (optical machines in particular), the problem won't easily go away in a vacuum from my understanding. A vacuum needs to be created after someone places a part in the chamber. While the vacuum is forming, the dust would still be there and would still settle on the part.
Another factor is the type of CMM being used. The one that I worked on was pneumatic. Unless it is specially designed for a vacuum, that would cause the machine to break. There are definitely measurements where a vacuum would be desirable, but usually it's enough to just make an enclosure so that no air movement disrupts it. I never had to do that though, I didn't work in a super advanced lab. I just worked on a CMM. It was super enjoyable work and I get nostalgic whenever I watch videos like this.
What I would be really interested in, is seeing a rendering of the model of the the tip you are using on the CMM.
Because I seriously doubt that that thing is perfectly spherical at the level of precision the machine is capable off, so I'm pretty sure you need to account for that.
I'd just really like to see what kind of insight one can gleam about the maufacturing process behind that sphere from such a model
I love that NIST is inviting RUclipsrs in to their facility to explain some of their processes and equipment. It's absolutely fascinating.
And step on and shake the ever so sensitive machine for fun
And this channel in particular is probably the most appropriate guest to invite! I always enjoyed "precision" as a vague concept, but this channel really made me want to learn about what that really is and where it comes from. Always happy to see an upload.
the insane precision of an organisation that coudn't - to this day - present a comprehensive and congruent explanation of the twin tower collapses and NEVER TESTED FOR EXPLOSIVES when the video footage is clear proof of parts flying UPWARDS during the collapses. NiST is a fakenews machine since 2001 whose lies killed more people than jews died in the holocaust by now
Yet they still refuse to release the data model they used to explain the collapse of Building 7. Yeah, real transparent organization. It should be subject to FOIA because its our tax dollars. Not to mention public interest.
But get this: they refuse to release their data because “it would harm public safety.” In other words, they’re trying to imply that it would theoretically reveal structural weaknesses that terrorists could use to target buildings. Yet they haven’t released that same data to architects or engineers or any qualified professionals. Explain that.
@@conzmoleman what they refer to is not "structural weaknesses" of other buildings, it is the safety of their oligarchy at risk if the people become aware of the depths and breadth of this crime and its decades of continueity, the trillions of dollar siphoned out of the economies of the world and the millions of people killed and made refugees
What fascinates me is how we can create tools of higher precision than the tools used to make them. The three plates method is like magic.
Thankfully, we're keep evolving in term of technology. Back then people invented pickaxe out of fire and specific rocks under the land
If you have a long rope cut to +/- 1 foot precision, fold it in half and now its +/- 0.5 feet precision. Not rocket science to make a better measuring tool then the one you started with.
@@wally7856 That's not the way precision is measured. Let's say that the initial rope is 10 feet long, +/- 1 foot. That's a precision of +/- 10%. If you fold in in half you get a 5 foot rope, +/- 0.5 feet, which is still a precision of 10%. In reality you're actually worse off because the rope has thickness and the bend at the point where you folded it will have a radius which introduces even more error.
using reversal method you can measure the straightness of both a machine axis and the reference even if both the machine and reference have an unknown straightness. that is also pretty cool!
@@IslandHermit its a highly impractical example, but he is right.
The unfolded rope will be between 9 and 11 foot long, assuming its within tolerance.
The folded rope, will be within 4.5 and 5.5 foot long, assuming an infinitely perfect fold. The precision has been doubled in this case.
Obviously in real life this owuld never work, nor does it have much practical use if it did. But he is right. % has nothing to do with anything. 10% of a millimetre is more precise than 10% of a metre.
I'm sorry for the long delay in getting a new video out. I became a father (no need to congratulate me :) ) and balancing family and other obligations has meant a huge change in how I use my time. I have experimented with many methods to produce content faster (plus kid getting a little older sure helps!) and the gaps will not be nearly as long in the future. A huge thanks to the lovely people on my Patreon who have provided me with the means to hire people for some key roles which is helping tremendously. The great news is I have several projects working in parallel now so there is a good pipeline. More to come from NIST and other projects I worked on with awesome people in the months to come!
Thanks for the video!
Love your content.
Well worth the wait :) ❤ the content
As long as you still post, I don’t think anyone minds how long there is between the videos.
Especially as these are super high quality and well made, it’s kinda like other educational channels that only post once in a blue moon.
congrats
My father was working in NIST/Maryland some 20 years ago. He worked in the Metrology department, on the laser interferometry. I believe some of his work contributed to what is shown in the video. Thank you for posting.
Love how the wires run loosely across the ultra-precision grid and how they are held in place by the pieces of the blue masking tape 😂
5:24 - they carry the readings from the temperature sensors is my guess. Might be difficult to route those wires in any other manner, due to the placement of those sensors.
@gacekky1 - I think the parent comment was more about mocking about how they are “precisely” held in place with tape, but I could be wrong. Most likely, the equipment was modified after it was manufactured when someone realized that temperature sensitivity affected measurements enough to warrant measuring those temperatures, and thus there aren’t any built in places for the wires to run.
There's a million plausible explanations for the setup, including simple investigations. Oftentimes my experimental investigations look crude, but I know they're sufficient to answer the questions I have.
Why waste time with shit that doesn't matter? 🤷 Sounds like these guys have studied what matters
Odds are the electromagnetic pull of ANY current running through the wires inside of the machine would be enough to throw it off so what do you do? Tape those suckers outside of the machine minimizing external fields as much as humanly possible.
Over the course of my career I've sent multiple samples to be measured at NIST by John and his team. A number of them on the Moore M48. Their capabilities are absolutely incredible. Working with a global supply base in extreme precision manufacturing, the levels of accuracy and precision needed are on a different level. Thank you for making this video and thanks to John and his team for their incredible work.
Ask him what he thinks of their 9/11 report.
I appreciate your past videos also. To your point of how standards testing trickles down, it also trickles down in emotional ways. 25 years ago I bought a new S-K Wayne 3/8 drive torque wrench from a combination tool and hardware store in Orrville, OH, an industry town near Amish county of Ohio. S-K Wayne tools were my dads favorite. As a gift for my fourteenth birthday, 1974, dad bought S-K's 1/4 drive shallow and deep socket set. The the fine tooth round head ratchet was the best for his work as a bodyman. Fast forward 20 years, SK tools were hard to find, but laying in a case was this S-K Wayne torque wrench, and I had to have it-- I have not seen another one since.
The second time I used the wrench locking mechanism that holds the torque setting jammed. As the hardware store did not have any more in stock, and story goes the wrench was out of production, my tool was sent away to be repaired. When it came back, a handwritten note in the repair package, apologized for modifying the tool, The head was the same, but the handle was completely different- later found out it was a Proto "Click-Stop" handle. I marveled at this good fortune to a more precise tool. The note continued to say that modified wrench had additionally be sent out to a certification lab, and bore a sticker and number of the certification. Today this S-K / Proto torque wrench is my most valued tool because of that certification tag! Yes I still have the 1/4" drive socket set too!!
Ok
I ain't reading all that. Make a video of it
@@bigqwertycat kids these days.
Sigh...
Oh wait my peers did that too when I was young. Uhh.
Kids who don't like reading.
Sigh...
Anything Moore built is in my mind a industrial work of art.
100% on point. We have one of their rotary tables and its accuracy is orders of magnitude greater than the knee mill it's used on.
The company still exists (I just checked) but it does other things these days.
Still hyper precision stuff but the Jig Borers and CMMs seem to have gone the way of the dodo, which is kind of tragic.
But on their website they will still sell you a copy of Wayne Moore's “Foundations of Mechanical Accuracy” and his father's book “Holes, Contours and Surfaces”
@@tonywilson4713 you should check out what Moore Nanotech does!
They LITERALLY wrote the book on machine accuracy.
"Foundations of Mechanical Accuracy" - Wayne R. Moore.
I have 2 books on my shelves.published by Moore. Holes Contours and Surfaces and Foundations of Mechanical Accuracy. For years, I've operated jig grinders and jig bores made by Moore. Extremely accurate machines that produce other extremely accurate machines.
As soon as he goes “we’re 80ft underground”
I was instantly like, yep, they’re dead ass serious about this…
The first time I ran across Moore machines was when I was doing machine repair. Had a customer who owned two of their jig grinder's, and had purchased two used machines rebuilt by the factory to full brand new specs.
When the new machines were delivered, there were labels all over them to let them sit in the correct climate controlled area for a week before the factory tech would do the initial setup.
With the two machines came a crate full of inspection equipment. Two weeks after the machines landed, the factory tech showed up. I'm now a full time CNC machinist, who's tools regularly state "Traceable to the NIST" on the their warranty paperwork.
This guy was pulling out inspection equipment labeled "Certified By NIST". Got detailed by the customer to be his assistant. Learned a hell of a lot over the next three days.
"The Inch is really just a weird Metric unit"
Damn that's a hot burn and I love to hear it lol
As a former QA person who was responsible for the calibration of our equipment, I really enjoy how you explain this subject. Not only that, your presentation and delivery of the information on all of your videos is very informative. Please continue to create more content. I really enjoyed the video of the large press’s. Thank you.
FWIW - I have a nanosecond given to be by Adm. Grace Hopper. It is a piece of wire 11.8 inches long. This is how far light travels in a billionth of a second. She used it explain to lay people why there was so much delay built into satellite communications. She was also the only flag officer that ever scared the Bejeesus out of me and I worked for over a dozen. She was intense.
Again with imperial system .....
Wait comms aren’t magic?😅
@@Petar120 how is metric better than this? C= 299,792,458 m/s
Hey that's neat! I worked for about 5 years working on and casting the molds for the polymer concrete bases that some these Moore Nanotech machines use as their frame! I knew I recognized that logo from somewhere lol.
So that base is not a cast iron?
What type of polymer are you using?I'm trying to build my home CNC.Sorry and thanks.
I recently found your channel, and binge watched all your videos in a single day, and literally when I thought to myself how I craved more of your content, I saw you uploaded this masterpiece! Thank you! Also, congratulations on becoming a dad!
OMG PLEASE make more videos about NIST! Good videos about precision metrology are so rare on RUclips. I've been working my way through Wayne R. Moore's book _Foundations of Mechanical Accuracy_ but actually seeing the Moore machines in 4k really brings the subject to life in a whole new way.
I just left basically the same comment, then scrolled down to read older comments and found yours lol. We got access to a local closed down manual machine shop about a month ago and among the things I purchased was “Foundations of Mechanical Accuracy”.
@@theastronaut2276 No kidding! That book is quite the collector's item now (at least in the UK where I live). There are free PDF versions online but if you have a hard copy, hold on to it!
One little quick comment about the XP computer. It’s peripheral, running old data collect software for a vision system I use occasionally. Nothing to do with running the CMM. Its good enough for its function. No reason to get a newer one, until it dies.
Which should be soon….
I met some barista who was as passionate as this guy when talking about temperature stabilization of his espresso machine.
Have you seen James Hoffman's coffee channel? He tried the "Decent" espresso maker. That thing tracks and controls temperature, pressure, and flow rate. It shows all of that through a PC tablet with charts. A level of control that seems insane to the rest of us.
@@jmchez These people are insane, just like extreme audiophiles and other nerds that are extremely passionate about things that tickle their human sense 90% of the difference is in their heads. You blindfold these people and give them 10 cups of coffee each brewed at 0.3 degree intervals from each other and I guarantee you they wouldn't be able to tell the difference any more than an average Joe you picked up on the street. Many just enjoy the brewing experience, like it's meditation, and I'm all for it. But some are truly deluded, and it's even worse when they feel all superior or are preachy about it. Coffee nerds and audiophiles are the worst for this stuff.
I did my EE undergrad internship (1993-97) in the Phase Noise Measurement group (Time and Frequency Division, NIST Boulder), and my final project was a 76.76GHz synthesizer that went into the Josephson Voltage Standard. That foundation in metrology has served me incredibly well throughout my 26 year career in RF/analog engineering.
Pre-9/11, NIST Boulder was set up with a self-guided tour, anybody could walk through the halls, I did it all the time as a kid. The atomic clock lab had a big viewing window in the hall. These days, I had to contact the group leader to get an escorted tour of the lab I interned at, and be on the guest list to even get on the campus. It's sad, and maybe an over-reaction, or maybe not.
It’s amazing that John and that machine are directly responsible for billions of dollars of products and whole entire industries are reliant on the measurements produced. Incredible!
Interesting point. Considering the nature and size of the programs that would utilize such data, it may quickly escalate into trillions of dollars in value from design and development that have used the services of this man and machine.
Your content is absolutely fascinating. Thank you so much. And, please sir, can we have some more?
It’s kind of an honor to be invited by NIST. Congrats 👍. Btw I know that if someone even walks by a high precession instrument, it goes out of wack, not due to the vibration, but the ground deformation. Oh never mind touching it lol, and I don’t mean the motion, but the heat of your hand, turns it into a banana. This is true for high precession machining, but this is another level of craziness.
Pre-9/11, NIST Boulder was set up with a self-guided tour, anybody could walk through the halls, I did it all the time as a kid. The atomic clock lab had a big viewing window in the hall. These days, I had to contact the group leader to get an escorted tour of the lab I interned at, and be on the guest list to even get on the campus.
It's sad, and maybe an over-reaction, or maybe not.
It would be interesting to make a comparison between the leading metrology institutions and the precision they achieve for various units. The Physikalisch-Technische Bundesanstalt (PTB) in Germany and the National Physical Laboratory (NPL) in Great Britain look like good candidates...
What's the one for Japan?
@@jmchez 11:10
@@music-jn3wn Nope, this is comertial lab (Mitutoyo Japan).
Japan national metrology institute is NMIJ, so this is equivalnet to NIST.
The video says NIST machines are the absolute more precise in the world. It seems not to convince audience outside US.
Those labs make comparisons like that on a regular schedule. 👍
I hope that one day I work at a job so interesting, that I can entice retired RUclipsrs to start making videos again by inviting them to watch my work.
Wow I'm glad I hit the bell-button on your channel. Really nice to have you back!
Even as a mechanical engineer, it's hard for me to imagine the amount of work that goes into designing such a precise machine - and making sure it actually is that precise in the end.
My brother runs a small machine shop and we have an old Mitutoyo 231 CMM and this Moore is on a whole other level. Cool stuff.
I'm actually extremely happy that I only have to keep my work (welding metal structures pieces) within the millimeter
@@ericpug9154 that would be true if i hadn't to make correction on almost all the pieces i'm putting together and some after being completely welded but i'm getting better ✌
Are you originally a wood worker? 😉
My experience is that metal workers use calipers and tent of a millimeter.
@@dansihvonen8218 there are several levels of precision on woodworking and metal working. My level is grind/file/rasp/sand until it fits 😂
And to think the LIGO makes the accuracy of this machine look like a school ruler.
Seeing this new upload made me so emotional! I'm glad you're alive and well!! I found you 5 or so years ago when I just started getting into engineering in high school, with the video on the origins of precision and later about the first lathe. I watched every video because they were that good. I'm now wrapping up my 1st degree in engineering, specializing in manufacturing. So if you see this, know that you helped changed the life trajectory of at least one random person on the internet!
I once framed a 6 ft plank to a 6 1/2 ft deck,plus minus 7/16ths tolerance,as someone who routinely dabbles in precision this appeals to me.
I'm REALLY surprised the interferometry doesn't happen in a vacuum. I know it would be a mechanically complex mechanism, but I always assumed that NIST length measurements used a vacuum laser interferometer.
You'd be surprised how many materials evaporate in a vaccum.
Edit add:
Also temperature control is trickier. Any heat source on the machine will be amplified without convection.
I imagine a lot of stuff would need a complete redesign to work in a vacuum, it'd become vastly more expensive, also unless it's designed for space it'd be pointless because most parts teste would be used at standard atmospheric pressure anyway. Also way harder to control heat in a vacuum.
@@Eagle3302PL I meant to put the interferometer in vacuum, not the whole machine.
Great timing on releasing this, as I’ve been reading through Moore’s “Foundations of Mechanical Accuracy” over the last couple of weeks. Very cool to see the principles found in their book come to life on RUclips, and with 50+ years of advancements since the book was published.
Love seeing a great video about Dr. Hocken's CMM!
Truly amazing! This is a clear example of my tax dollars being well spent - thanks so much for posting!
Thankyou for clarifying the superiority of metric, yet again.
Man no. The terrifying thing is not the machine being in a weird place. It's that ONE guy is the expert in this ONE machine that is imperative to EVERYTHING and that only TWO of them seem to exist (which I believe you stated earlier in the video). That's the terrifying thing. What if this dude gets into a car wreck and dies? What if there's an earthquake and the thing gets out of calibration?
What also known as “tribal knowledge”
This is a far more common thread in American manufacturing than you want to know….
Also, others will take his place. I promise you there’s someone there that’s been learning this from him for decades.
He mentions that there are two but a third machine is coming into service.
@@kw2519 Hurray for America! 😊😊😊😊
@@ellieprice363 Hell ya, I’m excited about this CHIPS act since I work for a shop that makes the parts that build the semi conductor producing machines.
Our workload jsut went up by about 5x and we’re moving into a new building that’s nearly twice the size of the old one. In addition to getting a bunch more DMU50s and CMX100s with that sick ass direct drive 4axis.
Moore has always made the best. Thanks for sharing. Charles
I'm surprised a Moore machine from the 80's still has not been surpassed. I have read portions of the Moore books, and am fascinated by them. This is not meant to be a bad comment towards them. Just surprising there is nothing better 40 years later.
It's not that nothing better can be built, it's more about this specific unit having 40 years of data, fine tuning, upgrades and software optimizations done. So you could most likely build a more precise machine but it doesn't make sense financially and practically the precision gained would not be worth it. There's also no one around to pony up the cash for such a project, I'm sure there'd be many engineers and scientists scrambling to join it.
@@Eagle3302PL Yeah the "precision gained would not be worth it" point is the important one I think. It's not only the measurement that varies with temperature, humidity etc, it's the dimensions of the thing itself. There's no point in measuring it to a nanometre or less when the dimensions are going to change by much more than that between the measurement and the context in which it's actually used.
Thank you.
I worked with laboratory equipment for several decades.
I remember when NBS was changed to NIST. I thought maybe it should have been NITS (humor). Because to get real precision one has to do a lot of thinking and experimenting and be a real nitpicker to get to the next level of precision .
Thanks again.
This upload is a surprise, but a welcome one
“The inch is just a weird metric unit”, couldn’t agree more 👍🏼
I wrote a blog piece in 2015 about atomic clock time-keeping. I found "The latest in atomic clocks would neither gain nor lose one second in some 15 billion years-roughly the age of the universe." That's NIST for ya! I haven't checked since, who knows what it is like today.
One application I found for that level of accuracy: - As Einstein predicted, a gravitational field causes time to pass more and more slowly as gravity increases. A clock which is higher is further from Earth, experiences less gravity, and thus runs faster. The new clock is sensitive enough to detect the time shift caused by a rise of only two centimetres! It can thus serve as an extremely accurate measure of height for mapping, and of gravity variations caused by the earth's composition and shape.
I saw Mitutoyo CMM being used way back in 2000 with the industry that I worked with, in India. It was used for measuring various dimensions of automotive parts. Considering such machines were available in Indian industry in 2000, finding more accurate CMM in US top institute after 23 years is not surprising at all.
Also, the effect of vibration, temperature and humidity is known to someone who is already in this field. I had been to CRDI fuel pump machining units, where the lathes were operated in controlled environment. And this too in 2000.
That Mitutoyo CMM had to be benchmarked against something. What do you think that something is?
Automotive isn't one of those industries that necessitates such accuracies -- it's things like semiconductor fabrication. The machines measuring things in those fabs had to first have a reference before they could measure. That reference comes from something like the tool this video is about.
The CMM featured here is already 35 years old.
But again this is at a national standards laboratory and used to verify other 'master' standards.
A few steps removed from the metrology shop in some auto factory (though your work is no less important)
That Moore CMM is as old as me! (December 1988)
I love this channel and its content, being a machinist and machine shop owner myself.
Really cool to see. My micrometers seem pretty accurate, or I thought they were, till now. Id love to see how Moore puts this machine together, where do they get there standards from? I think it all started with with a guy rubbing 3 stones together until flat
what impresses me beyond belief is how resilient those machines seem to be despite their crazy precision. Watching this dude stomping away on the air bearings feels totally forbidden but the machine doesn’t care and he knows it.
Coming from a background in semiconductor design, the nm scale wasn't alien to me, but I know the lengths the fabs go to make nm scale chips, so to be able to effectively put a scale on parts and measure to such accuracy is very impressive
"If you didn't like it, double thumbs down." Lmao, that was a good one. Thank you for the video.
I do Wire EDM work for a supplier of Moore Tool, their machinery is truly incredible. Nothing I have ever seen comes close.
NIST is probably the best thing America contributes to the world. Just the amount of money, time, and effort spent on just bare-metal metrology like this is so profoundly important for the modern world to even exist in the way it does.
Also, glad to see a new video! I was literally **just** thinking about this channel the other day wondering when a new vid would come out since I knew it’d be sporadic.
It's not like other countries aren't putting in effort in this areas
@@johanness6545 Never said they weren’t.
@@cheeseisgreat24 You are saying it [the work of NIST] is so profoundly important for the modern world to even exist in the way it does. So you are saying it relies on NIST and therefore play down all other similar institutions
@@johanness6545 And?
@@johanness6545 How does that invalidate the work they’re doing? And why does focusing on NIST in a comment on a video about them play down other’s achievements? Ever heard of the concept of “Staying On Topic”?
Very cool, thanks for making this. Makes me appreciate the great opportunity it is to be in industry in the US.
I gulped when he touched it at 2:54, really cool that he can do that, and it doesn't need to be in a clean room or anything.
I work in a calibration laboratory. Thanks for giving people a bit of understanding of what precision means.
Finally, a platform stable enough for audiophiles.
Please make more videos. The world needs you
The wait may have been long but it was 110% worth it
Standards are sexy when done properly. This was great!
I remember how NIST did the cover-up of 9/11.
"They played a lot of tricks with the data collection"
OMFG! Finally another vid. I haven’t even watched it yet but thank you, you’ve my day.
I owned the cousin to this machine, the leitz/brown and sharp PMM-C. It was an amazing machine we used for gear inspection.
Very interesting video. As a toolmaker for 47 years I understand the never ending quest for the perfect standard. I once operated a Moore Jig Bore Machine back in the 80's. Loved it.
Please don't dissapear for another year... excellent video
and all this started with some random dude stuck on a desert island that needed to build a time machine grinding rocks together
I used to fish the ponds at NIST in Gaithersburg back in the ‘80s. It was the National Bureau of Standards back then. We’d jump the fence at night. Big bass in those ponds!
Your videos are always worth the wait
Ahhhh! My favourite RUclips channel is back!
I always check in to see if anything it was been uploaded and I’m really glad to see you doing your thing and adding to your channel. This channel is incredible!
I'm very happy you're still producing videos! Thank you!
The only reason I'm not surprised that the machine is so accurate is because it's using laser interferometry. For those of you not familiar with laser interferometry, it's the technology used by LIGO to detect gravitational waves from black holes. _That_ machine has measuring arms four kilometers long - about two and a half _miles._
Welcome back! This video was an eye-opener, well worth the wait. Look forward to the next one.
I'm not surprised that we're able to measure things at the 10 nanometer scale, especially since we're creating dies in cpus that are 3-6 nanometers in size!
My dad worked in a machine shop that did a lot of work for NASA and other aerospace companies. They measured to the millionth of the inch and millimeter. They had to have tools calibrated and certified by NIST and others.
So awesome! Thanks to you and all who helped share this with us!
Just started digging an 80 ft deep mine shaft so I have a place to measure my 2x4's.
My job is designing fiber optic interferometers in the sub-nanometer range. I can tell you from experience, that you can measure the seismic impact of a fart from the other side of the building.
Thanks John!
I had a friend that worked at a standards lab in the 40's and 50's. His "interview" was to machine a steel rod of a certain diameter, then machine a hole in steel plate such that it took the rod at least so many seconds to "fall" through the hole but no more than a slightly larger number of seconds. If you could do that you _might_ be someone they could use. When he retired he took up watch repair. Something where he only had to worry about being accurate to a ten-thousandth of an inch - downright sloppy compared to what he had done.
As a person whose seen “professional” laboratories in multiple NDA style environments, on multiple occasions. I ask each and every one of you. Please take into consideration the diligence and passion required for our daily necessities.
I also ask that you question to the fullest of your extent, the authenticity, accuracy and precision of the testing done. Not only for the mundane items, but the life saving and changing technology used.
Don’t accept sub par, expect the best our minds can fathom. With testing vetted by standards known to the world.
What a great channel you have. The basics are timeless but so taken for granted and overlooked, but no real innovation can come without reference to them.
Been missing your video! Good to see a new one.
"The inch is just a weird metric unit" I'm dying. Funniest thing I heard all week. 🤣
Great video, thanks. I had metrology classes in the first quarter of "industrial mechanics high school". Seldom used the skills, but developed a never ending passion for precision instruments, methods and thinking. Still, metrology for industry and commerce tends to lag behind science's measurement technology, methods and algorithms.
Fast forward to now, and it's hard to believe how close industrial technology is to achieve serial production of components at sub-nanometer level!
-Fast rewind to my first semester in college, and I was feeding room sized computers with punched cards - in Fortran.
-Fast forward to college senior year, and sophomores were fleeing 5 year engineering courses to live in the "computer processing center", then just an administrative department, only to be near the microcomputers and take the new, yet to be sanctioned, programing language courses for microcomputers - and to play video games.
The advances we saw were amazing, indeed, sometimes almost predictable, always at exponentialy growing speeds.
You're BACK! Oh happy day! 🤗
As a HVAC technician, I am absolutely intrigued how they control the temperature of the room so accurately.
but still fail to see that kerosene and office fires cannot lead to almost free fall collapses of two skyscrapers, even though they were hit by planes but especially not the one which was not hit by a plane. TO THIS DAY they are lying about the most simple aspect of physics and the reality of the building construction at the time. absolute fakenews machine whose lies caused millions of deaths.
I've got some ideas, and they are all spendy. I would be at least as concerned with the air currents as the temperature. I know that a 30 fpm cross draft can make a four decimal gram scale go crazy.
@@dedwardskbd my guess is they have a intermediate room that is served by the air handler with +/- 2⁰, then an auxiliary air handler that mixes the air in the intermediate room, and then supplies the measuring lab using predictable laminar flow supply vents... Your thoughts?
@@mynameismynameis666 sounds like something a lizard person would say. 🤔
@@TheStevester2 2 planes destroyed 3 buildings. you must be great at maths...
Bro I’m so glad you posted again! I was worried you’d abandoned your channel :(
I found this video really very interesting and relevant to me personally. In the late 1700's my forefather was 'Keeper of the Kings Money weights' in the UK. Said other wise he was the engineer/scientist responsible for maintaining and defining the official measurement tools for the UK. Everything in this video spoke to me of the work he did. Really fascinating video - my profound thanks.
See my video The Origins of Precision. Lots more info there
Haven't even watched yet, I'm just SO EXCITED for a new video from you!
Perhaps the Moore can measure how long I'll have to endure my girlfriend's dissatisfaction with the amount of time I spend geeking out on MT uploads.
Hooray between Machine Thinking and Fall of Civilizations my life is complete.
Steve Jobs' Letter to Self, 9/2/2010
I grow little of the food I eat, and of the little I do grow
I did not breed or perfect the seeds.
I do not make any of my own clothing.
I speak a language I did not invent or refine.
I did not discover the mathematics I use.
I am protected by freedoms and laws I did not conceive of or legislate, and do not enforce or adjudicate.
I am moved by music I did not create myself.
When I needed medical attention, I was helpless to help myself survive.
I did not invent the transistor, the microprocessor, object oriented programming, or most of the technology I work with.
I love and admire my species, living and dead, and am totally dependent on them for my life and well being.
Sent from my iPad
Hooray! Glad you’re back. Please make more content!
Always a treat when MT uploads! Love the videos, hopefully we get more soon.
Yes please do more of these!
Really glad to see you posting again!
"So this is a nanometer display"
😲
Lets gooooo!! Super excited to see ya post again. Love this channel!
ive worked in a measuring room, and given the precision of a typical coordinate measuring machine that level is just insane, i never would have thought that was possible.
Great video. I'm happy to see you're back! (You are one of my favorite channels)
So glad to see you back! Was very cool to see this machine.
Thanks, worth the wait.