Fun Nuculur Fizzicks fact of the day

[Somewhatfoolish]

In certain circumstances, such as the inevitable death of our sun, the rate of helium fusion is relative to the 40th power of temperature. In other words an increase of just 20% in temperature will increase the fusion rate by 15 000%. This obviously increases temperature as well, and mind bogillingly the relevant part of the core, many times more massive than earth, is used up in a matter of years!

This will be in around seven and a half billion years time, so make a note in your diary now.

[mickk]

Could you remind me a bit closer to the time, i think i'm on holiday then.

[ypauly]

Somewhatfoolish said:

and mind bogillingly

agree

[r1ch]

[Getragdogleg]

r1ch said:

Now, be honest, how long have you been wanting to post that ?

[r1ch]

At least 2 weeks

Edited by r1ch on Saturday 6th June 17:14

[motco]

A twenty percent increase in temperature must be in Kelvin shirley? It can only be expressed as a ratio when zero is really zero as in absolute zero. I get irritated when people on the television say 20C is twice as hot as 10C. Wibble wibble...

[Somewhatfoolish]

motco said:

A twenty percent increase in temperature must be in Kelvin shirley? It can only be expressed as a ratio when zero is really zero as in absolute zero. I get irritated when people on the television say 20C is twice as hot as 10C. Wibble wibble...

At these temperatures celsius is kelvin essentially.

[v9 ogre]

If you want to appreciate what is happening at the moment (if anyone can get their head around this) the Sun is converting 4 million tons of Hydrogen into Heliun evey second!

[br d]

I vaguely remember reading about the suns 'energy bill', can't recall exactly but it was something ridiculous like 10 billion pounds a second or something. Cosmology makes me shrink!

[Mr.Jimbo]

v9 ogre said:

If you want to appreciate what is happening at the moment (if anyone can get their head around this) the Sun is converting 4 million tons of Hydrogen into Heliun evey second!

Not much point buggering about with +/- 273 degrees at 40th order of temperatures now is there?

[Daniel1]

v9 ogre said:

If you want to appreciate what is happening at the moment (if anyone can get their head around this) the Sun is converting 4 million tons of Hydrogen into Heliun evey second!

ive heard it range from 400 and 600 million tonnes a second. (The Universe on Disco and that Horizon about Nuclear Fusion Reactors)