Damn, super cool stuff man. I was nervous the whole time that the tube would explode on you, ha

Whoa, Cody did a Whippet on his channel. Nice!

Just rewatched now and you mentioning grant Thompson hit me hard

8:42 "If it doesn't explode, then it's probably good." Spoken like a true scientist xD

Cody should've been in KZfaq Rewind

When you make the seals, try to make them as round as possible, (e.g. test tube like bottom) not a pointy tip, and they will be stronger at high pressure. On the first seal gather some extra glass and while still hot blow into the open end to produce a smooth rounded bottom. Of course you cannot do this with the final seal, but make every effort to make it rounded, not pointy. Also, even though Pyrex has a low thermal expansion it will still develop stresses as it cool. To minimize this, after you make the seal, you should flame anneal by heating the seal in a cooler flame. On a butane torch this can be done by restricting (not totally) the air inlets to produce a yellow carbon rich flame. The idea is to uniformly heat the sealed area below the softening point of the glass to relieve the stresses. Then immediately bury your seal glass in some vermiculite so the glass cools slowly. This will (can) make a better result and stronger seal. That said, I am impressed with your 700+ psi ampules. Cheers, Mark Old Lab Glassblower *******************************************

Holy crap that a lot of N2O. You're gonna see Cody filling balloons out of the trunk of his car at the next festival that comes around

Cody, you know what I love about your channel? Not only is it your detailed educational content throughout your videos and the pure entertainment of watching chemistry experiments that aren't boring, but you didn't sell out and go with an over-produced, I'm cool, YT channel. It's just pure chemistry from a dude living out in the country, just being the true Cody. Much respect man. Great job all around.

Cody, a tip from a former borosilicate lamp worker: heat below where you want it to seal so it melts inwards and is thicker and able to withstand higher pressures. the way you showed yourself sealing it left a very thin seal. also the slower the temperature rise and cool the stronger the crystal structure. heat the top few inches to a couple hundred degrees and then seal above it and coat it with carbon from the torch to help slow it's cool.

I think supercritical oxygen would be fascinating, its magnetic properties in the glass vial would be there at room temperature.

It is doubtful that finding a new channel has ever brought so much joy! You are a superb human and I’m so glad I’ve learned of your existence!

This guy is absolutely brilliant and so completely humble. Can't even begin to imagine what he'll accomplish in his lifetime.

I see that your lab is outside, 10/10 for ventilation, nice

Great video as usual Cody!

Cody straight got high on cam while explaining nitrous! LOL

Keystone science, Nilered and Cody all being amazed at gasses in glass. This is truly the sight of the century.

Cody, was this just an excuse to do whippets on youtube

Hey Cody, I am hoping for a follow-up video! I'd love to see the process of the clean up. Also, Do you have any tips for a student applying to the U. I applied for next term, and I am curious as to what the environment is like? Thanks, Harry

I love this! I'm in Chemical Engineering and phase changes are a huge deal, but we don't get to see a lot of high pressure phase changes in a hands on environment. I like that you've figured out how to actually make this stuff work on the small scale.

I miss-read that as "gassing seals in tube"

I can't believe the glass tube didn't shatter when half of it was dipped in ice and the other half being heated by a blow torch.

You could also wet sand the acrylic with a fine grid if you want that perfectly square "scientific" look, instead of dipping it in more acrylic. Just get a nice flat surface to sand on. You should do an failure test with the acrylic encased tube.

Cody, I really appreciate how you actually explain the chemistry and the science behind what you do on your channel. A lot of channels that do "science" experiments never explain what is actually going on at a molecular level or why their reactions are taking place. Thanks for what you do. Its awesome!

Cody, you should send those acrylic tubes to Peter Brown (see KZfaq) to have them turned down into polished cylinders. Would be a cool collaboration across channel genres.

your channel is growing so fast! And you deserve it, these videos are amazing! You're the first person on youtube I've seen who's used science to make fun projects and thats amazing.

Cody got a little "light" from that balloon, we see the cut Cody ;) Great video

Cody, your love of learning and experimentation is absolutely wonderful to see. Thank you.

Wow, this time you really explained it all thoroughly! the chemistry, how to do it practically, even the failures and how to overcome them. I wish you did that in every video!

5:08 You basically get high from inhaling Nitrous Oxide. I think Cody had to cut for a second because of it

If someone ever tries to rob you, just throw your collection of gasses at them.

I like you the most out of everyone on youtube, because you stay yourself even with almost 1 million subscribers

Every video I watch of yours Cody your very optimistic. Every time you make a small mistake you don't really beat your self up much, at least not out loud

Hey Cody, just a heads up, it's usually better to not wear gloves when working with glass. If molten or hot glass gets on your hand, you get a tiny burn and it bounces off. If molten or hot glass gets in your glove, it is much, much worse. When I torch, I wear a leather smock and sodium-flair goggles, but no other equipment.

Badass nerds. It's a new phrase that fits you perfectly.

I'd like to see you test one or more of those acrylic-covered ampules to destruction (safely). On the one hand, it would be a potentially neat video. On the other hand, if you're going to store them, it seems to make sense to understand what happens if they fail. For example, if the acrylic doesn't shatter outright, does that mean it might develop one hole or crack and then rocket about in one piece? And, if so, us there enough store energy for it to cause significant damage?

I love your channel so much i actually turn off add block when i watch you!!!

Incredible how that borosilicate glass tube could tolerate such a temperature differential. One end in liquid nitrogen, while the other end is being heated with a torch only a few inches from the very cold lower portion. I'd be afraid to handle that tube. Even though you waited before removing it from the water, there's always a chance it can still explode. Risky.

I saw N2O on the thumbnail and just thought "he's gonna breath that in 'for science'"

Excellent! I have a tiny capillary with xenon which does its thing at around 15C but yours are much more impressive. You've done the hard yards and reaped the rewards!

you are my new fav channel. your excitement for stuff is amazing! never stop being curious!

I love your content but I would love to see more episodes of the mine series

Just looked it up. That combination of elements in your intro is, in order: Cobalt; Dysprosium; Sulfur; Lanthanum; Boron.

Your Audio is amazing Cody. I'm so happy people with money like you as much as I do.

we need Science teachers like him. I mean ones who are passionate about the knowledge they have and want to pursue more. I love this channel. Always in awe of what he does.

favorite channel. thanks cody

10,080 likes, 39 dislikes. Best ratio ive seen before.

Codysblab is a modern educational channel. One truly without bias and genuine intent to entertain and inform.

this is dealing with questions I have had for a long time but was unable to find a source of data on...so at last my curiosity is at least partly satisfied....very interesting stuff..love it

Can you use those tubes to make a thermometer and tell room temp based on which one is liquid?

new mic sounds good!

Happend to watch right to the end. You have an amazing attitude towards failure and injury. I wish I had an ounce of that objective reaction.

I love how much hard work you put into your videos Cody, keep it up man

Omg your so close to a million! You can do it!

Did I miss the step where he purged the atmosphere from the ampoule?

Dear Mr. Cody sir, this was most enjoyable. I truly learn much from you. Thank you. pierre from New Mexico

This collection is something I would enjoy seeing updates on from time to time.

They remind me of Fortress of Solitude crystals.

Comes out unharmed after drinking cyanide, dipping his hand in mercury, biting sodium, sealing gases under pressure in homemade glass ampules and more... But almost dies trying to hang up an axle stand..

I love that you can see exactly when the n2o starts hitting you as you try to explain stuff, I wish i had a huge can of the stuff!

I've been watching a lot of hands-on chemistry videos lately. I have to say that Cody's are the best. He just feels more relateable than the really sterile lab-setting videos. I've been so inspired to start learning more and trying my own (safe) home lab experiments.

RIP Grant

We need a colab with Shop TIme!!! I'm sure peter can help you make perfectly cast samples!

This might be my favorite video of all, Cody. Really REALLY cool.

One of the coolest, if not THE coolest gas video you have done to date. Really awesome stuff. I really enjoyed!

"yes, laughing gas" me: breath it all in

What happened to the mine videos? I really enjoyed those.

This is so cool! I don't know much about science but it's so awesome watching someone who does! Great video as always Cody!

excellent work Cody. Good explanation.

I'm amazed it doesn't crack and explode from the massive thermal difference and rapid shift of temperatures

I like when you say Ha, Ha! I am sure is Ha from Happiness!

Great channel. Always cool to see a passionate backyard scienctist...with a very large yard.

Hey Cody good to see you back at it.

Holly fuck Cody, I was here when you had less than 10k subs... now you are almost 900k ! Congrats man!

Thank you so much, for adding a text where it says the temperature in C* :D

This is one of the coolest videos you've done in a while Cody. Keep it up!

5:09 never thought I'd see cody doing whippets live on youtube 🤣

Why not put the acrilic in a vacuum chamber to degas and increase the clarity?

Cody, in the future get a speaker that is capable of playing a bass heavy beat, then while the acrylic is drying place it ontop of a board on the speaker and play the music, it will remove the bubbles for u and make it clear

I think that "Project Pokemon" would be a good name for your gas collection project.

that microphone is great, massively increases the quality of your videos

Hey Cody, awesome video as usual. Encasing the tubes in acrylic. Genius! Safe and functional. I wanted to request you do some gases that change color when their state changes. Example. Chlorine gas(dangerous) is green, but liquid chlorine is clear(i think). Also gaseous oxygen is clear, but liquid oxygen is pale blue. There may be others with even better color changes. It would be interesting to watch the state change along with the color. Also interesting to use color as indicator of state. If you had a bunch of these of tubes with known temperatures of state change, you could arrange them to make a fairly neat visual thermometer.

You should send those to peter brown of shop time to lathe those down and polish them.

dude, you are an amazing scientist! I like your lab equipment and all the tools at the ranch, it looks like a lot of fun!

this is by far one of the coolest setups i have ever seen, watching gases phase in and out of critical is by far my favorite chemistry experiment. i may one day have to copy this. another gas you might try is some of the canned air gases, i did a fun little experiment with those once using a 1 liter soda bottle... the warm water caused the cap to soften and become disengaged from the threads... it made for a really impressive rocket and a lot of atomized water. but there are a handful of different gases used, plenty of room for experiments and relatively easy to use.

Hey Cody - When cutting/sealing the tubes, I wonder if (delicately)chucking the glass tube in a cordless screwdriver (or any motor driven apparatus and using that to rotate it at the desired speed would help

You could add more fail footage when they blow up. People love explosions :p

Very cool experiment, wonderful processes

Thanks for all the impression!

how did you not laugh or smile when breathing in the nitrous oxide?

With the scrap glass you have you should make prince ruperts drop and do you have a source of cheap glass tubes

Incredible!!! You're one of my science heros.

I'm glad I watched the video you did with grant. It introduced me to your channel. Very nice videos, goes to show that chemistry is a lot more interesting that what you have to learn in high school.

do a face reveal at 1M subs

If you sell those I am buying them.

the noise of the glass rubbing almost killed me. great vid

the audio sounds great. learning a lot. keep up the good work!

youre allowed to breathe no2 without laughing?

Do that with fart... No, serious. Put fart in a tube.

Great video Cody, nice job !

The mic quality is great. Thanks for upgrading.