Re: population sizes for colonising a planet
- From: jdnicoll@xxxxxxxxx (James Nicoll)
- Date: Sat, 15 Oct 2005 13:28:24 +0000 (UTC)
In article <4350C42C.F23291F4@xxxxxxx>, nyra <nyra@xxxxxxx> wrote:
>
>[1] my rough-guess figures - hopefully about correct to an order of
>magnitude or two - are that 2 m² of Earth area receive the amount of
>energy from the Sun that one human consumes.
Rather surprisingly (Or at least _I_ was surprised when I realized
this), human body produce about 100 watts and on average each square meter
of the Earth gets about 350 watts, at least at the top of the atmosphere.
So call it 1/3rd of a meter. 1% efficiency (which is even worse than photo-
synthesis) would make that 30 square meters.
There's a lot of room for improvement in the systems we use to
turn daylight into thinking meat.
--
http://www.cic.gc.ca/english/immigrate/
http://www.livejournal.com/users/james_nicoll
.
- Follow-Ups:
- Re: population sizes for colonising a planet
- From: Damien Sullivan
- Re: population sizes for colonising a planet
- References:
- population sizes for colonising a planet
- From: senn
- Re: population sizes for colonising a planet
- From: James A . Donald
- Re: population sizes for colonising a planet
- From: Erol K . Bayburt
- Re: population sizes for colonising a planet
- From: nyra
- population sizes for colonising a planet
- Prev by Date: Re: population sizes for colonising a planet
- Next by Date: Re: population sizes for colonising a planet
- Previous by thread: Re: population sizes for colonising a planet
- Next by thread: Re: population sizes for colonising a planet
- Index(es):
Relevant Pages
|
