# Re: Nuclear power

```I heard that hydrogen nuclei in the sun fuse after on average 5 billion
years of wandering around bumping into each other (I guess that's kind of
obvious - the Sun is due to "live" for about 10 billion years, so it must
use its fuel at a comparable rate). So the energy production per volume
would seem fairly low - one in 5 billion nuclei fuse per year, or one in
150 x 10^15 per second. I guess density is around 10^23 per cubic meter
give or take an order of magnitude, so about a million atoms fuse per cubic
metre/second. If I read Wikipedia right, each one releases about 7 Mev so a
million release about 7 x 10^12 ev or around 10^-6 J/sec, which I believe
is one microwatt.```
```
Damn, I've slipped up somewhere, haven't I? Maybe someone with more of a
head for maths can do the calculation properly.

On 25 November 2013 19:09, Jason Resch <jasonre...@gmail.com> wrote:

>
>
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> On Mon, Nov 25, 2013 at 12:57 AM, Chris de Morsella <cdemorse...@yahoo.com
> > wrote:
>
>>
>>
>>
>>
>> everything-list@googlegroups.com] *On Behalf Of *Jason Resch
>> *Sent:* Sunday, November 24, 2013 9:33 PM
>> *To:* Everything List
>> *Subject:* Re: Nuclear power
>>
>>
>>
>>
>>
>>
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>> On Sun, Nov 24, 2013 at 8:23 PM, Richard Ruquist <yann...@gmail.com>
>> wrote:
>>
>> Stars are essentially fusion bombs and stars can explode.
>>
>>
>>
>> I like the analogy that stars are essentially just giant compost heaps.
>>  The levels of energy production in the core of the sun is quite low on a
>> per-volume basis: a few hundred watts per cubic meter.  On the same order
>> as your own biological metabolism (and not much greater than that of a
>> compost heap).  It is only by virtue of the huge volume of a star that it
>> produces large quantities of energy, but all the energy of a cubic meter of
>> stellar core would be just enough to run a TV or a computer.
>>
>>
>>
>> Very interesting; never considered it that way. Thanks for sharing.
>>
>
> Thanks, though I can't take credit for it, I found it on
> http://en.wikipedia.org/wiki/Solar_core#Energy_production which appears
> to be largely inspired from:
> http://www.abc.net.au/science/articles/2012/04/17/3478276.htm
>
>
>>  So if a star is a compost heap, does that make a black hole the
>> swirling flush of a cosmic toilet?
>>
>> I know… pretty much, a non-sequitur, but such is life :)
>>
>
> :-)
>
> Jason
>
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