Thanks for testing so thoroughly! Very interesting to see how difficult it is to get a cold welding result!

@daftnord4957

7 жыл бұрын

can you show a more in-depth video on how to make a nut vibrator?...making one for a friend

@battlescar2001

7 жыл бұрын

AvE Thanks for recommending this channel to me. Cody has almost a million subscribers now. crazy.

@Toahmisae

7 жыл бұрын

So, is it pronounced Ave?

@arduinoversusevil2025

7 жыл бұрын

Ja, nuts, I remember coming across his water to acid mythbusting vid then having my mind blown at the TNT vid; thinking how does this guy only have a thousand subscribers?!

@lordchickenhawk

7 жыл бұрын

This colab has been very interesting to me, I think the finding that twisting metals together plays a big part in cold welding is significant in the mystery of gauge blocks holding on to each other... yet I've never had gauge blocks gaul up permanently like actual cold welding

Cody: Cold welding is all about cleanliness and flatness. Speaking from experience, physicists doing high-precision experiments don't have to worry about cold welding effects until they are utilizing ultra-high vacuum (UHV) systems. At those pressures, nothing is generally able to be dirty (because it if were, then the pressure would be lower anyway, because even metal outgasses to some degree). Think of it this way. Metals are really just atomic lattices. If you zoom in so far as to be able to see the atoms (at atomic resolution), then in the absence of anything else (oxide, dirt, crap, whatever), you'd just see an incomplete lattice (probably rebonded at the boundary) and then nothing else (just vacuum). If you have two such objects and then touch them together, then you literally have just one complete object. In other words, cold welding is the effect of making two objects one, quite literally. If you zoomed into your samples (which you probably think are relatively clean already), you'd be shocked to see how much gunk there is on them in the form of water vapor and other stuff on the atomic scale, even with the oxide completely removed. Moreover, you have to have very flat surfaces in order to cold weld properly. Polishing to a tiny grain size is almost a must in order to see the effect. The problem comes in because there's almost always just way too much junk in the way in order to actually cold weld something. Oxide will obviously be in the way, but even if you remove all of that, there's still a lot of stuff that will cause problems. If you have an UHV vacuum chamber and clean it with chemical solvents for days and bake the hell out of it, you're still going to be pumping for quite a while before you reach UHV pressures (circa 10^-10 to 10^-11 torr). Scientists who use UHV will tell you how arduous it is to get their chambers down to UHV pressures. Even a single fingerprint accidentally left on the inside of a UHV chamber will cause the pressure to be high for months. For this reason, everything that goes into the system has to be ultra-clean. Parts have to be cleaned with chemical solvents over and over again (often using an ultrasonicator) and so forth. The chamber itself has to be baked for a long time to remove the excess fluid pressure of the moisture left inside. Conflat flanges using copper gaskets have to be used in lieu of traditional o-ring seals because at those pressures traditional seals will fail. You absolutely cannot touch anything which goes into a UHV system with oily (ungloved) fingers. In short, UHV is a lot harder than normal vacuum pump work. And yet, you really need UHV pressures in order to see proper cold welding. Sure, you can twist parts together at atmospheric pressure, but you're really just lodging the metals together in certain places and causing them to hook together because they are not atomically flat in places. You're just using the non-uniformity of the (presumed flat) samples that you have in order to simulate a cold weld. True cold welds should be permanent, because it's really just touching one half of an exposed, polished, flat metallic surface to another, making one piece. I hope that makes sense. In summary, once again, cold welding is all about cleanliness and flatness. Thankfully, it is much harder to achieve than it is, because otherwise us scientists would have a devil of a time trying to get anything done!

@pcprincipal8817

7 жыл бұрын

SlamminGraham HA Nerd!

@edwardcarrington3531

7 жыл бұрын

SlamminGraham word

@cylosgarage

7 жыл бұрын

SlamminGraham Jesus how long did it take you to type that

@m8onethousand

7 жыл бұрын

That was a pretty nice read. Thanks for writing your comment.

@marshallgibson7817

7 жыл бұрын

SlamminGraham I like it. keep up the good work

"So I've set up a mouse trap here and fixed the two pieces of gold to it" I love you, Cody.

Cody, can I just say, I have so much respect for you still posting videos of "failures" like this, where you didn't obtain the desired result. It brings the viewer along with you on the journey of discovery and shows the process of trial and error that is necessary to learn anything. I notice you often have a bunch of know-it-alls in the comments going "oh well OBVIOUSLY" and "I can't believe THAT didn't occur to him", as though it's possible to know everything or that they always knew the things they know. You are obviously quite smart and knowledgeable on a wide range of subjects, and I really appreciate that you don't pretend you magically just knew everything from birth.

@deborahwood9304

5 ай бұрын

My first time watching and I'm super impressed. I wish everyone had this much curiosity, can you imagine a world where we are too curious about one another and the way things around us work for hate and discord? This is why so many nations can inhabit the ISS in such close proximity, mutual curiosity for the unknown with only the expectation that they learn from their failures. They've seen this planet for its fragility hanging in space dwarfed by an unknown infinity.

Cody, Another approach you could try is to freeze one piece of gold in the liquid nitrogen so that it shrinks, next clamp it together with the other piece of gold, then as the frozen piece starts to warm up it will expand and possibly lock the two together. anyway great video!

@samuelpyke5933

6 жыл бұрын

Experimental Fun runs on coke huh

@probablynotabigtoe9407

4 жыл бұрын

While cryogenics can change crystalline structure in metals, it won't make them magically flat and clean enough for the lattices of the gold to cold weld on large surfaces. Temp was not his failure.

@NoMoreBsPlease

3 жыл бұрын

He's trying to cold weld, which bonds it on an atomic level. Your talking about pressing metal together, not even close to what he's trying to do.

can you extract calcium from bones? I'm the same guy as last video

@joshcorona4521

7 жыл бұрын

Joshua Corona I'd love to see that!

@jackgeo9193

7 жыл бұрын

by any chance aer you the same people?

@JoshC03

7 жыл бұрын

Jack Geoghegan very much so. that's how I start up a comment

@dragon111409

7 жыл бұрын

You can easily run that experiment yourself . just use distilled vinegar and some chicken bones. It's rather fun takes a few days though.

@RyanPhoenixAZ

7 жыл бұрын

interesting 478 You are an idiot

4:45 am i going crazy or do i hear two different things being said?

@boggless2771

7 жыл бұрын

trueharm - whoa cody messed up

@adamxue6096

7 жыл бұрын

I thought I was the only one XP I thought KZread or my computer had a problem, since I heard it right after a internet crash XP

@Newschooled

7 жыл бұрын

Obviously a ghost.

@lumbago2146

7 жыл бұрын

trueharm not crazy

@prumchhangsreng979

7 жыл бұрын

trueharm u know, u are using youtube where u can just go back to that minute and replay it. 😪

Cody's so close to 1,000,000, help him get there 😀

Have you degreased the gold? Probably there was a thin film of oil or other organic stuff that prevented cold welding. Try a piranha solution or a concetrated solution of sodium hydroxide in ethanol. They are powerful degreasers especially the piranha solution. Also you can check if water beads up on the surface which would indicate that surface isn't clean enough.

@theCodyReeder

7 жыл бұрын

I tried several things; acetone, isoproponal, heating... I was using gloves in the beginning to keep the oil from my hands off it.

@Kwazar90

7 жыл бұрын

it's really hard to get rid of it. Organic stuff is suspended in air and even perfectly cleaned surface will be dirty after some time. I had some luck with concentrated H2SO4 mixed with surfactant (Sodium dodecyl sulfate). Piranha would be the best though.

@MultiAutis

7 жыл бұрын

Probably Patreons getting earlier access

@cephasrock2620

7 жыл бұрын

I Like Turtles Same it says he put the comment 6 hours ago and it went up 5 mins ago WTF XD

@Kwazar90

7 жыл бұрын

Like Fredric Marc wrote - I'm one of the patreons, and have earlier access ;)

was that an editing error 4:46

@theCodyReeder

7 жыл бұрын

ah it seems so.

@pcfreak1992

7 жыл бұрын

that was an error in the matrix :'D

@XxMrDudexX

7 жыл бұрын

Cody has secretly cloned himself. That was just them talking over each other.

@thesuperfryingpan8164

7 жыл бұрын

hey7328 WTF was thaaat😂😂😂😂

@luiscarlosrico2304

7 жыл бұрын

Cody'sLab HAHHAAHAHAHA

1:53 So here's what I came up with... LET ME SHOW YOU ITS FEATURES!

4:47 Lol we now have 2 Codys arguing

when will you be continuing rocket videos? is it because of the lack of a licence?

@AaronKJames

7 жыл бұрын

pls reply!

@VilleRuokonen

7 жыл бұрын

Aaron K. James Calm down

@RyanPhoenixAZ

7 жыл бұрын

Ville Ruokonen lol

@alphaadhito

7 жыл бұрын

Aaron K. James Ha, the nitric acid - diesel fuel thingy rocket? That's so old, i want to see it though

@origamihawk

7 жыл бұрын

If you can find a way to incorporate a vacuum chamber maybe he'll do it!

When I tig weld aluminum, after I'm done "molten puddle is solid" during the post flow of gas I can stick my filler rod to the piece near the weld and it sticks together. When you weld aluminum it burns the oxide layer off and is under 100% argon gas (inert) this could be a great way to verify your oxide layer and oxygen molecules sticking to the surface theory.

@AwsomeVids83

7 жыл бұрын

Ross The Welder That's a very interesting thought! I've noticed that occasionally while tig welding aluminum, but never really thought about it much.

@msld3529

6 жыл бұрын

*aluminium

@thomasbarlow4223

4 жыл бұрын

Ill have to try that

I appreciate your channel because you're not just blowing shit up for fun and calling it science. You actually explain what is going on and use the scientific method to answer real questions.

This is seriously one of the coolest interdisciplinary videos I've seen. I've watched most of these videos over the past year or so, and for whatever reason this particular video really stood out to me. Please do more like this. For what is's worth, I agree with the logic behind grinding the metals together vs. slamming them together. If cold welding can only take place if the crystals from the different halves are aligned in some specific way, it would make sense that rotating the two surfaces in opposite directions would be particularly effective in providing more opportunities for this to occur.

You worry about a single layer of O2 atoms on the gold, but not worry about a 'mountain' of molecules of grease from your hands on that gold? No wonder it is not cold welding. Besides those gold bars were not polished enough - they have to be mirror polished.

@TheKirbot

4 жыл бұрын

I also wonder if the wooden rig was outgassing and causing problems

@MikeDrew312

3 жыл бұрын

“Diamond finished”?

@MikeDrew312

3 жыл бұрын

@notfiveo Junior Mold Polisher here checking in. Lol

When you wring the gold and indium together and they 'weld' could that just be that two soft metals deform under the pressure and gall up and they aren't welded? Is there a fusion line when you do this?

Good stuff Cody!! As always....Ave was the channel that brought me to your channel!! Great couple of minds

i've been subscribed to AvE and you for a while and happy to see great minds coming/working together

next video Cody goes to NASA and cold welds in space

@matthewisbell6385

6 жыл бұрын

science_and_anonymous lol

Rockin' the chamber! yes, love that band.

Searched for this video after seeing your comment on AvE’s channel. Glad you delivered!

awesome that you two are figuring shit out together. blowing my mind that my 2 favorite youtubers are doing collabs. keep it up guys!

i was gonna make a joke about sodium, but Na

@rock3tcatU233

7 жыл бұрын

You zyklon b kidding me brah? I did nazi that coming.

@cephasrock2620

7 жыл бұрын

The Real Canadian Bacon Was that the joke if so I don't get it

@CB-lh4ph

7 жыл бұрын

Cephas Rock the symbol for sodium is Na. in german the metal is called Natrium.

@AmillionCookies

7 жыл бұрын

i would make a chemistry joke, but all my jokes argon

@kieranfirkin544

7 жыл бұрын

Na BrO

Guys this guy is a genius !

@Elizabeth-no9vq

7 жыл бұрын

Naseef Bro He's like a modern day Bill Nye

@naseefbro2519

7 жыл бұрын

Elizabeth Walton true 😂

@pcprincipal8817

7 жыл бұрын

Elizabeth Walton Except no one really liked Bill Nye.

@Elizabeth-no9vq

7 жыл бұрын

Sav age speak for yourself bro I loved me some Bill Nye

@pcprincipal8817

7 жыл бұрын

Elizabeth Walton Except no one but you really liked Bill Nye*

Thank you so much for your regular updates. I make a point to watch every video and to like them also!

Dude that's so cool you're working with Ave. you guys make an interesting friendship. Excited to see more. He's a fun Canadian guy, knows everything about tools.

Did you take into account the temperature of the metals? Maybe twisting the bars together heats and energizes the atoms a little and allows it to happen. Why don't you try heating the bars and then touching them together. not hot enough to melt but just to like 200 degrees. Another possibility is while twisting the bars together obviously doesn't increase the temperature of the bars themselves to melting temperatures. But maybe the surface atoms for a brief moment get heated up to their melting point. But this heat can't be measured because its only a couple atoms that are that hot for a fraction of a second. Maybe the surface atoms of the bars are several thousand degrees for the moment you twist them together and that causes them to melt together.

@PromptedHawk

7 жыл бұрын

He did heat the gold up with his laser a bit, I'm not sure if it's anywhere near 200 and it does depend on if you use the imperial, centigrade, or science scale, so please point that out. Anyway, he'll probably have to glue them and want to get them back, so he might not have an alternative other than hot glue, which will melt.

@STDrepository

7 жыл бұрын

no he didnt. He shined his laser on the bars but they didn't touch for 30 minutes after that while he evacuated the air in the chamber.

@soxfansince97

7 жыл бұрын

That's a good point. In addition, I wonder if the metals behave somewhat like a non-newtonian fluid, in that abrupt shock will not fuse them because it stiffens the intermolecular forces somehow.

@samtukua4508

7 жыл бұрын

STDrepository Wouldn't the smashing together cause lots of heat on it's own? It would last much less time but wouldn't it?

@STDrepository

7 жыл бұрын

smashing together creates a shockwave that distributes heat through the bar evenly. But twisting would cause friction that only heats the surface atoms.

Dear Cody- Think of how much cooler your life would be if your last name was Slab. Thanks

@jonavanderpal

7 жыл бұрын

Bestest comment ever.

@roycezaro1998

6 жыл бұрын

It's time for someone to get a name change lol

@fdnt7_

6 жыл бұрын

bestest comment? BESTEST? WHAT DO YA MEAN

@dangernoodle8376

6 жыл бұрын

I don’t get it

@samuelpyke5933

6 жыл бұрын

No I think codydon codydone

My day is made. I just saw a collaboration of my two most favourite KZreadrs'. So much love!!!

Dig it. I've been an avid watcher yourself and AvE for a long time. I was pleased to see you chime in on one of the vidjehos in his chat channel. It's a good combination in fact and hopefully more collaboration is possible. Fans of both will dig.

Cody, what if it was the WAY energy is introduced? When you rub them together the energy is spread rather evenly throughout all crystalline planes, while when striking you make point contact, being the number of planes interlocking or joining (welding) smaller and cannot hold back the rebounce (after all it is an ellastic material). Just like the force of rebounce exceeds that of the weld and it breaks off instantly?

@matman7546

7 жыл бұрын

Alexander Martínez Pasek certainly a plausible explanation. By rotating the pieces together, their surfaces are conforming to eachother. This creates a large enough contact area for both bodies to bond sufficiently in order to support the weight of the bottom piece.

My cannabis seeds just came in this morning! I'm so stoked to get this season going!

@cate2732

7 жыл бұрын

Mitchell Maytorena sweet

@bernardo00124719

7 жыл бұрын

cool, probs man.

@mitchellmaytorena1137

7 жыл бұрын

It is a bit random, you're right.Lol I was watching this video and paused it cause the mailman came and bang, I had a bunch of top of the line cannabis genetics! I just couldn't contain myself. As your internet buddy I strongly advise you all to start cannabis companies. It's a billion dollar industry in Colorado alone!

@MrDoboz

7 жыл бұрын

welcome to the jail in 3 days

@ethanna1684

7 жыл бұрын

Its legal in some states

Cody you came a long way. I remember 2 years ago when I subscribe back with the green house water plants and solar panels in about. Now you have 1 mill subscribers. I love this channel for it's scientific research and test.

'Him and I get along pretty well' I would too if someone sent me gold bars :) AvE and Cody's lab are the two Chanel's I look forward to watching all the time.

Sounds interesting. Will be interesting. Let´s take a look. Good to have no plans for the next 20 minutes...

I've always wondered if the 'bouncing back' from smashing the metals together breaks/prohibits the cold welding. like the plates should wobble around at least a little bit from the force of the impact, which i can imagine, is counterproductive for the welding... also: cool poster, DFTBA ! edit: have you ever tried just pressing the two together in a vacuum? It's probably way harder to do, but that would definitely eliminate that theory.

I love your glasswork, great idea on removing the chance of a contamination by mercury. That Sprengel pumb is just pure awesome. Keep up the awesome work.

Ahhh so close to 1 mil! Your videos are genuine, and I love watching them. Should have been at a mil long time ago!

Cody, i have a good question. Will a polaroid picture develop in a vacuum? Please answer this I've always been wondering, and since you have a vacuum, i was hoping that you could find out.

@guruluka223

7 жыл бұрын

It also would be funny if you could take the picture inside of the vacuum. Thanks!

@jonavanderpal

7 жыл бұрын

en.wikipedia.org/wiki/Instant_film

Cody ! I'll keep spamming my question then :P Why won't the oxidized layers on two material cold weld, they are basically the same material does cold welding happen only for pure elements and not compounds ? why?

@hani5042

7 жыл бұрын

Lizard813 so does that means only metals can cold weld?

@maxmccormick3376

6 жыл бұрын

Only metals can cold weld because their surfaced are like incomplete perfect crystals

@twami86

6 жыл бұрын

It's called welding, so it only happens to metals

@rivitraven

6 жыл бұрын

Tarmius matals also oxidize and metal with an oxygen is still a metal compound. It just becomes a metal-oxide. So yes they can technically weld. The only problem here is that metal-oxides when heated up will separate into their old elements due to the the heat and the fact that there isn't a high enough pressure to prevent them from changing chemically when the heat is applied. If you ever listened to your chemistry teacher on how chemically reactions reverse, it's due to pressure because the world around us is always searching for a state of equilibrium. Mostly this is for aqueous solutions but it actually goes for solids aswell theoretically. I haven't ever been able to do this myself because it's extremely difficult and it's extremely dangerous to do. Not to mention that I don't have such supplies to replicate such a thing happening.

You, ave and the essential craftsman are my favorite KZreadrs! Keep up the videos and thank you for all the interesting knowledge.

Love your channel, would haven't seen it but for that scoocum chocher AvE.... One love my brothers, please keep making me smarter!

If u can u chould do more mining videos

@cephasrock2620

7 жыл бұрын

Jack Beauchemin Ye mining vidz it's so cool what he could find :)

@colinwunder670

7 жыл бұрын

Cephas Rock good english guys!

@Jackowammy

7 жыл бұрын

colin wunder Good*

@Reper123100

7 жыл бұрын

who chu talkin bout willis?

@pcprincipal8817

7 жыл бұрын

Falcon If you're going to be a douchbag grammar Nazi, you should correct the word English for him as well.

MAin problems, in my POV: Low vaccum (you must go to high vaccum to notice any difference). The ones with turbo or diffusion pumps. Your mechanical vacuum should be around 1 or 0,1 Torr, which is still a lot of air. You should go to at least 10-6 Torr to get sth. Second, surface roughness, you should go to extreme polished, lapped surfaces with nanometric roughness. This might be tricky without specialized equipment.

@theCodyReeder

7 жыл бұрын

If you watch to the end you can see that I got down to to less than 10 microns.

@leonardoulian764

7 жыл бұрын

Ok. I meant about the gold experiment. But I see you tried to prove your point by a different experiment. Seems promising. I would let that running for some days if possible...

@hey7328

7 жыл бұрын

a micron is a unit of pressure in this context, with a micron being a micron of mercury, and it is equivalent to 10^-3 torr

@markusweigand695

6 жыл бұрын

at 10 microns mercury (strange unit), it takes less than 5 millisconds for adsorbate film to have build on the surface of the metal even if it had been clean before. You would need to get a at least 4 orders of magnitude lower to have any chance at all.

Great video as always, Cody! I've been looking forward to this one for a bit.

Really well done man!! Like how you kept trying different things and pursuing a real result. Thank you for the great vid!!

Can you make a PhD out of this though?

@mitsukai89

7 жыл бұрын

you would fail hard if you dont realize you are friction welding.

Gold is so unreactive, it doesn't even like itself.

I love how my two favorite channels on youtube just so happen to work with each other.

What amazes me most is the fact that cody just comes up with these genius contraptions to interact with objects inside the chamber. :D

its it Ave or A-V-E (just how you say the channel)

@kanqquperze

7 жыл бұрын

jdnrox Short for ArduinoVersusEvil.

@eunhjzjined3795

7 жыл бұрын

jdnrox : AvE was originally Arduino Vs Evil

@kanerangi261

7 жыл бұрын

jdnrox A-V-E

@rich1051414

7 жыл бұрын

Yeah, its A-v-E

@mylesbishop1240

7 жыл бұрын

No guys you're all pretty much wrong it's AvE

4:45 Cody turns into a demon

@damonjackson5857

7 жыл бұрын

MineFish lol!

11:20 "Possibly several hours" His commitment to science is unmatched!

This is the best science video of 2017 for now. The bar is set pretty high now. 😀

4:45 lol

can you do more on you hydrogen generator please

You remind me of my first husband 😂🤣 He would get his head set on something so beyond my understanding and pursue it to exhaustion. Great video! I read about cold welding and just had to see what it was. Really thorough explanation. I cannot believe how much I enjoyed this video 😂❤

You make a good case for explaining asteroid accretion in the vacuum of space. With the static electrical potential you mentioned in the radiometer video, and eventual gravitation effects, space dust-to-asteroids becomes a pretty straightforward process.

try putting a natural sponge that is holding water inside a vacuum

@adameakle7137

7 жыл бұрын

Cory Pickerign i think that may brake his air pump as water might get in it.

@CoryPickerign333

7 жыл бұрын

perhaps a light oil/liquid oxygen/a gas other than water in its liquid state instead.?

@adameakle7137

7 жыл бұрын

Hmmm. i don't know, however i don't know how sensitive his pump is either. I don't know where he said it but he has stated it's very sensitive but i don't know the date of it. maybe it might work.

@adameakle7137

7 жыл бұрын

on the other hand i just realized that if he used extremely distilled water *please correct me if i'm wrong* it might not be a problem if it got in the pump as it's non-conductive.

4:46 editing fail

This is fascinating Cody, I've got a fantasy of huge dry docks in orbit cold welding ships together without using any energy.

Cody, they showed ya on today's brand new episode of Outrageous Acts of Science on the Science Channel. Was the one with the bang snaps(pop snaps whatever ya call em) in the vacuum chamber. When it came on I was like, "Hey! Its Cody! Awesome! As always love your vids man! Keep up the good work.

Is it me or does anybody else not only watch this for the knowledge but because he is contagiously chill. where you get chill vibes just watching and listening?

@piergiorgio919

3 жыл бұрын

Damn in 4 years you didnt get a single like, guess noone agrees

I love how my two favourite channels have been collaborating

Saw you on Outrageous Acts of Science! Congrats Buddy!

Great video Cody! Very interesting, just continue with your work :)

wha? that was quite spectacular. great sciencing Cody.

Love this channel. It's like lab everyday. If you want to it'd be awesome to have a second channel with calculations for the experiments that can be explained that way. AWESOME Job

An Ave and Cody collaboration would rock, get with it guys, you know you want too.....

i love AvE his videos are so funny and i noticed that both of you guys have certain phrases you like to say

Idk why, but when you're talking while examining the stuff under the microscope it's like a watching a homemade video of a mad scientist.

2:40 Wow, this is quite the cool rig, love what you come up with Cody!

Cody vibrating the metals to get them to weld reminds me of a process used to weld copper in atmosphere. It is "ultrasonic welding" process that use high frequency vibration and pressure are used to weld the materials. Looks similar to what you did in vacuum but it need much more energy to weld in atmosphere.

Wow a Cody’s lab video that actually makes sense

Hey cody, with your videos I feel like I am doing the experiment I think that EVERY scientist should film and post in youtube their experiments so that the process of learning can be shared too. istead of only the hypothesis, process, results, and conclusion. you do thouse in your videos like an actual scientific study, but by seeing you do the experiment I feel like I can learn MORE.

Very interesting video. I had no idea cold welding was a concept at all prior to seeing your videos! also, very cool dftba poster dude

Best KZread collaboration of all time!

What's most interesting in the result with the copper powder is that this experiment says that finely grained dust will merge into lumps easily under vacuum. I am thinking of sun's primordial dust cloud. This experiment is a beautiful DIY-able demonstration of how dust could have clumped together to form our planets. Absolutely brilliant, lads!

@matthew4718

6 жыл бұрын

Eo Tunun nabaksjzkakk JajqjaaiaknHwbbsbedbd

My understanding of the process is that both metal surfaces have to be exposed once in the vacuum to prevent any oxidation layers forming, to achieve this you could use the same basic rig with magnets but replace the falling weight with a cordless drill and the cleaning cloth with an abrasive such as Emory cloth. Once at vacuum a length of the emory cloth gets spooled by the drill removing any contaminants and hopefully giving the clean surfaces needed. Another point I'm sure other people have mentioned is grease contamination from your fingers, wiping the surfaces down with a degreaser such as alcohol and then handling the pieces with either surgical gloves or tweasers might help. Anyway, thanks for sharing these videos and I look forward to future content

Pretty interesting Looking forward to future results

Your a cool guy and have nice videos. Thank you for contributing to the fee knowledge my little bro and eventually my kids will use. Solid experiments

Cody, it was explained to us in machine shop class that the gauge blocks stick together by external air pressure. The surfaces of the gauge blocks are so smooth that you squeeze the air out from between them and they stick like a suction cup.

@johnnyhillybillybo1425

6 ай бұрын

Bruh, he literally put it in a vacuum chamber and they still stuck

Awesome! I learn something new from every video you make, man.

Thanks so much for this video! I've been experimenting with cold forging and am really interesting in cold welding.

Hey Cody, chemist here. Just a little suggestion for getting a decent vacuum faster. Have you tried installing an external cooling trap on your vacuum chamber? Run the tubing (ideally a metal one) into a glass cooling trap, freeze it down with liquid nitrogen and you should be around 10^-3 mbar in no time. Even with a moderate pump. That also eliminates any problems arising from mercury vapor

Great, demonstrative video. We see a lot of interested people commenting here, many who are familiar with physics, chemistry and experimentation. I wish more people (there are a lot) who don't spend any thought or time in this area would watch these sorts of videos. Many who don't really know any of these concepts. Maybe then there would be more appreciation for science and how much thought it really takes to have created the comfortable, privileged world in which they live.

Cody Slab you've done it again!

You are awesome ! I think because of the vibration in the vacuum the copper powder moved and created friction that causes electrizity and welds the particles together ! Greetings from Germany !

now, after "putting things in a vacuum chamber" became a trendy topic, i like how you keep your videos scientific and not just for fun.

That setup was so cool. Good effort, dude.

"String that I can cut with my laser" got me way too excited xD

whoa, you're awesome Cody!

congratulations for being on outrageous acts of science

Cody's vacuum channel - ALMOST 1 MIL SUBS, MAN!

I'm not the biggest fan of science but I still watch your channel because I feel I will become smarter from listening and watching you :)

Do different frequencies of vibration change the end particle size? Can you cold wield 2 different metals?

This is the video we have been waiting for!

awesome, thanks for all the vartients!! keep up the good work!