Opening a Vacuum Chamber Under Water

I open my vacuum chamber under water to see what it looks like

#shorts

[Ro]

Now we need water open in a vacuum. Hopefully nothing would break

[DarkJak]

The fact James didn't complain about how heavy the cube of water was the most amazing feat.

[azurlake]

Actually I'd say you had less air than the resulting bubble has. The incoming water has some air dissolved in it but since inside the chamber the air pressure is very low some of the air in the incoming water escapes to fill the available space.

[eluvianii]

Oh, yeah I guess this is safer. For some reason I was expecting him to open the thing all at once and the tub to implode

[localnyraccoon]

This chamber has gone through a lot of things over the years

[vitaliyjuterbog]

The internet is this endless series of answers to 8th grade science questions, and it's awesome.

[AyushSingh-chko]

That vacuum chamber has gone through a lot, good to see it getting a fresh bath

[RChern]

Not complete until he says "That's so cool!"

[HenrikoMagnifico]

This is what you call... a Delta-P situation

[Marc_Fuchs_]

"without letting anything come out" - that implies, that there is something inside, that WANTS to come out. But there simply is nothing. Nothing wants out, but the entire space is literally empty and the pressure of atmosphere and water pushes the water in with force.

I guess many of you knew by yourself. It's still fascinating though. I assumed, an empty vacuum chamber wouldn't float, but it made me think and realize, it's not the air, that let's things float, but the amount of water that gets displaced, and it doesn't matter, what displaced the water, even if there is literally nothing. Learned something new myself!

[averagepal]

Would have been more interesting if you had it on its side when you opened the valve... would it fill the whole chamber or just to above the tap?

[Fille]

As a mechanic I use this all the time. In modern vehicles you can't just pour coolant in a empty system it won't fill all the way up. It's going to create airpockets throughout the system. So you have to manually bleed the system which requires lifting the front up running the engine so it gets hot and all the thermostats open and put the heater on full blast and feed coolant slowly in to the system. It can take up to 40 minutes to a hour to do this. Instead you would use a valve like the one on the box to create vacuum in the coolant system and then submerge the other valve in coolant and you'll fill the system instantly. No airpockets no bleeding nothing just trun the key and go.

[TheNapoliLad]

*We need vacuum chamber inside vacuum chamber*

[slicelifetv]

I wonder what would happen if you opened the whole box really fast. I feel like it would create some sort of implosion.

[slappy]

I had never thought about it before, but I was kind of surprised when the vacuum chamber was still buoyant even though there was no air in it. Then I immediately realized that the displacement doesn't change as long as the dimensions don't change, and it's technically even lighter when under a vacuum. I wonder how far down it could go before it implodes?

[evirareid]

The byford deep diving thing makes so much more sense to me now

[ALovelyBunchOfDragonballz]

This is basically the Vac-and-fill process for a vehicle coolant system but expressed with a clear box.

I love it.

[jonathanhill]

That’s how we fill cooling systems on cars as it makes the bleeding much easier if required at all. Great way of doing the job on rear or mid engine cars as the rads are all the way at the front.

[diegolopezDL]

This guy makes me think of things that I never would have ever even thought to think about

[johnforrestboone]

the bubble was the amount of water that boiled while under vacuum.