Everitt Mickey wrote:
>
> -----Original Message-----
> From: Robert J. Bradbury <bradbury@aeiveos.com>
> To: extropians@extropy.com <extropians@extropy.com>
> Date: Friday, August 11, 2000 1:44 AM
> Subject: Planets, materials, Oil reserves & permaculture
>
> ><snip>.........on Neptune That is the current theory on why it radiates
> >2.6x as much heat as it receives from the sun ......<snip>
>
> Curious.
>
> The other day I read on James P. Hogan's Bulletin Board that Venus radiated
> 40 times the heat IT received from the sun.....and now Neptune is a net
> producer as well......
>
> Things are just weird...
Is this that Hogan guy who buys into Velikovsky's BS? According to Foggs
_Terraforming: Engineering Terrestrial Environments_ Venus reflect 70%
of the liht hitting it, with, as I recall 90% of the remainder being
retained by the greenhouse system there. I'll go dig up the book outta
my Jeep and get some better data...
Now, any excess heat a planet radiates above that which it receives from
the sun is obviously a result of it turning its angular velocity to heat
through vulcanism in Venus's case (it doesn't have much angular
velocity, having a retrograde day of some 240 earth days) and through
convection in the case of Neptune. Unless you think there are Helium3
people living on Neptune fusing hydrogen for energy...
-- TANSTAAFLMike Lorrey
"In the end more than they wanted freedom, they wanted security. When the Athenians finally wanted not to give to society but for society to give to them, when the freedom they wished for was freedom from responsibility, then Athens ceased to be free." --- Edward Gibbon (1737-1794)
"A person who wants a society that is both safe and free, wants what never has been, and what never will be." --- Thomas Jefferson
"It's a Republic, if you can keep it..." --- Benjamin Franklin
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