space questions

[Le Havre Oswald]

How hot can something get? Is there a limit or does it just keep going on and on... And what's the hottest thing in the universe.

Same for cold.

 

[Skashion]

How hot can something get? Is there a limit or does it just keep going on and on... And what's the hottest thing in the universe.

Same for cold.

As far as we know, there is no limit. We've created temperatures of over 5.5 trillion degrees Celsius on Earth with the Large Hadron Collider. The only thing we know of that was hotter than that was The Big Bang itself.

Yes, the limit is called absolute zero and is -273.15 degrees Celsius. We know that because atoms simply stop functioning at that level. They have no energy at all. We often cool things to near absolute zero because it allows us to do some pretty interesting stuff due to quantum effects like superconductivity and superfluidity. MRI scans use superconductivity for instance.

 

[without a dream]

How hot can something get? Is there a limit or does it just keep going on and on... And what's the hottest thing in the universe.

Same for cold.

Cold is very easy, absolute zero, -273.15 celcius. I have no idea about the hottest, I don't think there's anything thermodynamically to limit high temperature, possibly something to do with atoms moving at the speed of light but I don't know.

 

[BlueBearBoots]

How hot can something get? Is there a limit or does it just keep going on and on... And what's the hottest thing in the universe.

Same for cold.

well the microwaved apple pies from the garage were hotter than the sun according to Alan Partridge :)

 

[dronefromsector7g]

What was their best song?

I reckon Female of the Species.

 

[nijinsky's fetlocks]

What was their best song?

I reckon Female of the Species.

How big is the space inside Corky's head?
I'm going for very fucking big indeed.
In fact it may well be a vacuum.

 

[dobobobo]

There was a BBC4 programme about the moon recently, and an 'expert' in solar power reckoned that you could transport and build sufficient solar units on the moon to be able to power all the earth's needs for ever. His estimate of cost was the equivalent of what is spent generating power on earth over a three year period.

The general impression given was that once there's an operable space station on the moon, subsequent cost of any onward activity, such as space exploration, would be a small fraction of the cost from earth.

Correct. 52 minutes and onwards covers the bit Lavinda Past is referring to.

[video]https://www.youtube.com/watch?v=JHxkDiNil60[/video]

Also, I can't remember if it is covered in the programme, but Helium-3 which is rare on Earth is thought to be in abundance on the Moon. If we can find a way to harvest that then we have a new natural resource.

As I understand it nothing that is rare on earth can be in abundance on the moon

I agree with that. I've seen umpteen article page fillers claiming a far distant planet is full such and such a chemical. Until someone actually lands on one of the fuckers and proves it, it means nowt.

 

[TheMightyQuinn]

Is space bigger than the world?

 

[dobobobo]

Moon rocks??? just thought I`d throw it in there :(

He also forgot about Cheese.

And the Clangers.
I've never seen one Clanger on earth, or a soup dragon.
Well, not without using mescaline first.
This thread is fascinating to a Luddite like me who considers it an achievement to log on, and struggled with 0 level physics.

It is an achievement to long on and I love technology! They can put a man on a moon put they can't find a way to keep my log in details safe! I have 25 passwords written on a piece of paper and it's still an abosute ball ache to log on!

 

[Skashion]

Is space bigger than the world?

Or, or, is the world bigger than space, is what Kierkegaard would say...

[video]http://youtu.be/6jSIc3YPRw8?t=14s[/video]