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• #40877
Does that one count?
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• #40878
What about that one?
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• #40879
How much water is there on Earth?
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• #40880
Why do you get sick after drinking sea water?
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• #40881
Where can I get fruit saline in the UK?
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• #40882
Except at undersea volcanic vents, maybe
I wondered about that, but if we have a closed system, the earth can't radiate any heat. It was hot at formation, and has been constantly generating heat from nuclear processes ever since*. With no radiation the whole earth would achieve thermal equilibrium after a while. Since most of the mass of the earth is liquid now, it seems that the equilibrium temperature is going to be above the melting point of nearly everything, the crust would never solidify, so no oceans and therefore no vents.
*If you apply this power
http://phys.org/news/2011-08-radioactive-key-ingredient-earth.html
over the geological timescale, even disregarding whether the power output was higher earlier as you would expect from a big ball of nucleons gradually decaying down chains leading to stability, then
29TW × 4 billion years = 3.6e27J added to the total thermal energy of earth since assembly
divide by the mass
3.6e27/5.9e24 = 610J/kg
and it looks like the temperature would have risen by only a fraction of a degree -
• #40883
Who prefers Windows 8 to Windows 7?
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• #40884
without scales this is meaningless
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• #40885
Are you agile?
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• #40886
light on my feet, like bruce forsyth..
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• #40887
A lot more agile than you, chunky.
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• #40888
That's a bit mean, given that Hippy is in the Teenslain club these days.
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• #40889
A lot more agile than you, chunky.
Not holding a child you ain't, sleepy.
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• #40890
That's a bit mean, given that Hippy is in the Teenslain club these days.
I don't walk anywhere thank you very much. I prefer the comfort of a big red bus.
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• #40891
You can walk again now?
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• #40892
I choose not to.
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• #40893
hippy needs to lay him down to sleep
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• #40894
as per car jump - significantly faster than 30 though
[ame="http://www.youtube.com/watch?v=YU45sXojN68"]http://www.youtube.com/watch?v=YU45sXojN68[/ame
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• #40895
Some years ago I bought a tool bag off here. It's made out of recycled inner tubes. Where did I get it and who did I buy it from and are they still making them? (I think they play polo)
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• #40896
How much for some Tesco Raspberry sorbet delivered to my door, now?
Does anyone have a Computrainer control box?
What temperature is it in here?
What temperature is it out there?
What model new TV should I buy?
How much bauxite is there?
How many wind turbines are in the UK now?
How much does a helicopter cost?
When running from a rabid dog should one turn left or right?
Can you jump over a car moving at 30kph towards you?
When travelling at the speed of light, how heavy would you be?
How much would I get for my soul?
How high can humans jump?
What is the best rum?
Is the rabbit population increasing or decreasing in Australia?
How many more questions can I ask?
Does that one count?
What about that one?
How much water is there on Earth?
Why do you get sick after drinking sea water?
Where can I get fruit saline in the UK?
Who prefers Windows 8 to Windows 7?
Are you agile?
[QUOTE=andyp;3391327]A lot more agile than you, chunky.
Not holding a child you ain't, sleepy.[/quote][QUOTE=Dammit;3391331]That's a bit mean, given that Hippy is in the Teenslain club these days.
I don't walk anywhere thank you very much. I prefer the comfort of a big red bus.[/quote]
I choose not to.
https://www.lfgss.com/thread98697.html
I knew you'd get to it, eventually.
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• #40897
When travelling at the speed of light, how heavy would you be?
The answer is no one knows.
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• #40898
It was more getting tired of bike questions in AQA.. there's only about a million bike threads already that would be suitable for those. Or JFGI of course.
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• #40899
Novice with questions requiring guidence! I want a road bike. the last bike with gears i rode regularly was about 5 years ago and was an ancient gary fisher mountain bike with pretty basic replacement parts on it so have no idea about squat basically.
There is a frame on here i am contemplating buying and the seller can provide with it the majority of a 7700 groupset (minus shifters).
What are the basic rules regarding compatability of parts (groups and wheelsets), good casette/chainring sizes to work with and i guess general do's and don'ts when building from scratch(ish)?
thanks
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• #40900
What is the cheapest bike available to purchase in the UK with Ultegra Di2?
Foffa
How many more questions can I ask?