General Science Discussion Thread!

[Stargatedalek]

but underwater is fun, in space you go freezy freezy

 

[Xiahou Ba]

but underwater is fun, in space you go freezy freezy

Actually, you don't freeze into human popsicles in outerspace since while it's really cold out there, there's nothing for heat to transfer to: in fact your blood "boils" instead because there's no air pressure to keep them in a liquid state. And you can freeze underwater, since the deepest trenches don't receive any sunlight.

 

[Xiahou Dun]

Water is an even worse place to be in to freeze since all your heat just transfers to the water.

Your blood doesn't boil in space because of a lack of air pressure. If it was true, nobody could go to Mount Everest.

In space, there are cooling units for space walking astronauts, which says a lot.

 

[Xiahou Ba]

"Boils" refers to the air bubbles which appears in your blood (hence why it's in quotes), it's not the same boiling as the one you use to cook your spaghetti

 

[Xiahou Dun]

Oh, thanks for the clarification. Still, your blood doesn't boil in space.

 

[Xiahou Ba]

In fact, here's what happens to you in space

http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970603.html

 

[Stargatedalek]

In order to be deep enough to instantly freeze you the water pressure would crush you first

also, thats cool, you get the bends in either environment

iirc cooling units for astronauts are because of the suits, not space

 

[Lakituthequick]

Space is basically like Underwater. Except Space has a bit more harsh conditions.

There is quite a difference. In water you get flattened. In space you get pulled apart. (Overstatement's, just to get the point across.)

 

[ernesth100]

Does the water crush you because of the weight?

 

[Xiahou Ba]

Not necessarily weight

http://oceanservice.noaa.gov/facts/pressure.html

 

[Lakituthequick]

Though weight does play a role. Air also has a weight, and it presses on us as we speak. Due to our bodies being filled with stuff, we don't get flattened.

Just see what happens when you suck on a bag. It flattens. In space that wouldn't happen, because there is no pressure of air to press it flat (disclaimer, don't try that, you'll be dead before you get the chance).

 

[ernesth100]

How would you cool or dissolve Ionized Plasma?

 

[Random Blue]

How would you cool or dissolve Ionized Plasma?

A general answer would be lower its energy.

 

[ernesth100]

How would you cool or dissolve Ionized Plasma?

A general answer would be lower its energy.

Thank's needed that for a story.

 

[Random Blue]

All state changes are fundamentally because of lowering/raising how much energy the substance has it's a good thing to keep in mind