I've been a bit busy this last week so I'll just tidy up on the responses to
my thread.
Horace - I changed the ambiguous wording from our personal spaceship to
I then went on to calculate what size our individual “spaceship” would be
today within which we each metaphorically have to live our
In reply to Nick Palmer's message of Fri, 28 Mar 2008 12:30:59 -:
Hi Nick,
[snip]
The purpose of my
calculations was simply to blast these people out of their complacency with
simple maths that is easily checkable.
[snip]
In that case, might I suggest a table of numbers indicating exactly
NP Surprisingly, our personal spaceship works out to be a globe only
about 1.18 kilometres in diameter
HH This is wrong by orders of magnitude by inspection. Such a sphere
would easily fit within a 10.6 km envelope around the earth.
No, one's personal space on Earth is a piece of land and
In reply to Nick Palmer's message of Sun, 23 Mar 2008 20:17:33 -:
Hi,
[snip]
I was trying to find out what people thought of these figures - were they
surprisingly small/big/about what you expected etc?
[snip]
IMO they are completely meaningless, because they imply that we actually have
There are some authoritative figures on living space and arable land in
Pimentel et al. Remind me to dig them up on Monday.
- Jed
On Mar 21, 2008, at 4:40 PM, Nick Palmer wrote:
Could Vorts look over the paragraph below and give me their opinion
on it (also please check the maths). It is part of an article I am
writing for our newspaper on sustainability.
Perhaps people do not realise how little
On Mar 22, 2008, at 11:01 AM, Horace Heffner wrote:
Using an earth radius of 6371 km.
http://en.wikipedia.org/wiki/Earth
The density of air at the earth's surface is 1.2 kg/m^3, The mean
mass of the atmosphere is 5.1480×10^18 kg.
http://en.wikipedia.org/wiki/Earth's_atmosphere
The
If each person got a 2m x 2m x 3m cell, the ship would only have to
be about 5 km in diameter.
Horace Heffner
http://www.mtaonline.net/~hheffner/
If each person got a .5 m x 0.3 m x 2 m suspended animation cell, the
ship would only have to be about 3 km in diameter.
Hmmm... more practical to take a few cells from each person and use
whatever life exists where you are going as incubators.
Horace Heffner
Could Vorts look over the paragraph below and give me their opinion on it (also
please check the maths). It is part of an article I am writing for our
newspaper on sustainability.
Perhaps people do not realise how little environmental space we all
share because there is a rather
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