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5,414,704 Views ā¢ Jan 24, 2020 ā¢ Click to toggle off description
For a while now, I've wanted to make aerogel, but for that, I needed to use supercritical CO2. I didn't really know what that was though, and I figured the best way to learn about it was to make it myself.
My first video on supercritical fluids: Ā Ā Ā ā¢Ā supercriticalĀ fluidsĀ Ā
My main channel NileRed: youtube.com/c/nilered
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Nile talks about lab safety: Ā Ā Ā ā¢Ā ChemistryĀ isĀ dangerous.Ā Ā
Views : 5,414,704
Genre: Science & Technology
Date of upload: Jan 24, 2020 ^^
Rating : 4.946 (2,234/164,545 LTDR)
RYD date created : 2022-04-09T21:17:00.476746Z
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YouTube Comments - 6,041 Comments
Top Comments of this video!! :3
Ben: "it's somewhat dangerous and might explode if you aren't careful"
Nile: shakes it around in his hand while it's pressurized
3.4K |
I love it when a scientist says "I have no idea what's going on." That's when REAL science happens.
5.7K |
NileRed: strict and is usually safe
NileRed Shorts: has a little fun, and edges the line of dangerous
NileBlue: "I've been thinking alot about Neutron Bombs, the materials for that are really expensive, but..."
1.3K |
NileRed: this is basically a bomb
also NileRed: *shakes it
4.8K |
"and it didn't blow up and kill me so.." that's what I love about science.
4.2K |
The Beads suffered "Thermal Shock" which resulted in them shattering internally. Those iridescent looking bits are the surfaces of internal fracture plains refracting the light.
You can often see this in natural crystals (eg: Quartz).
2.1K |
That multicoloured opal-like feature in the silica crystals is called the Schiller Effect. Itās common in a lot of gemstones.
644 |
"it didn't blow up and kill me, so huge thanks to Ben"
1.8K |
āLet me pay for shippingā
āno.ā
āBut i-ā
āno.ā
āCome on Ben.ā
ānope.ā
2K |
Watching Niles videos is like watching a suspense movie where you know the hero survived (because otherwise he wouldn't have been able to make and post the video).
745 |
The cracked silica beads would probably look pretty interesting under a polariscope. Also having one is useful for seeing stress in your glassware so it might prevent the need to smash all your beakers again in the future.
688 |
NileBlueās channel in a nutshell: āhe warned me that in theory it was kind of like a bomb and it could explode at any time, but it should be safeā
2.8K |
NileBlue: āI did a pressure thing and it didnāt explode so I shook it around. It still didnāt explode so I shook it harder. It was still fine so I came in with a hammer-ā
6.4K |
i used to work in the compressed gas and cryogenic liquid industry. my manager told me of a story once where an entire semi-trailer load of liquid CO2 was lost because the driver left the pressure relief valve open, and it all turned into a block of dry ice. that sounded like fun times!
98 |
I love how he goes from being really cautious with the chamber to shaking it violently like 10 minutes later
48 |
"This thing is practically a live bomb"
starts violently shaking it
2.1K |
Opal is literally what you describe, hydrated SiO2 put under geological pressures, so congrats on making synthetic opal
2.6K |
Nice seeing this video featured in PBS Space Time! I've always wondered why supercritical fluids exist, and what they are like.
90 |
It looks like the liquid slowly changes refraction index, until it becomes invisible to the eye. Stunning
29 |
@stoutlager6325
4 years ago
2022 Nilered/blue: "I've been thinking a lot about fission bombs. The materials for that are really expensive but... I bought some."
29K |