Re: Disposing of nuclear waste.

mmeron_at_cars3.uchicago.edu
Date: 10/09/04 

Date: Sat, 09 Oct 2004 22:12:31 GMT

In article <41682730.A563923C@spambtinternet.com.invalid>, George Cox <george_coxanti@spambtinternet.com.invalid> writes:
>mmeron@cars3.uchicago.edu wrote:
>>
>> In article <j4hk32-7eq.ln1@sirius.athghost7038suus.net>, The Ghost In The Machine <ewill@sirius.athghost7038suus.net> writes:
>> >In sci.physics, George Cox
>> ><george_coxanti@spambtinternet.com.invalid>
>> > wrote
>> >on Wed, 6 Oct 2004 20:18:43 +0000 (UTC)
>> ><41645322.E49F1D98@spambtinternet.com.invalid>:
>> >> Why can't it be fired into the sun by rocket? Too expensive? Too
>> >> dangerous?...
>> >
>> >It could; the main problem is that the Earth is moving at 30 km/s
>> >relative to the Sun -- and then there's the problem of getting the
>> >stuff out of Earth's "gravity well".
>> >
>> >For every 1 kg fired into the Sun one would have to expend at least
>> >1/2 * 1 * (30,000)^2 = 450 megaJoules of energy -- about
>> >the equivalent of 10 gallons of gasoline. With current rockets,
>> >one has to accelerate at least part of the fuel as well,
>> >requiring additional energy.
>>
>> I'll repeat what I already wrote once on this topic. It is easier to
>> launch something out of the solar system than to fire it into the sun.
>
>One wouldn't want to do that for fear of poisoning aliens.

Evaluate the probability of anything you launch hitting any planet,
anywhere in the galaxy, over the next, say, billion years.

Mati Meron | "When you argue with a fool,
meron@cars.uchicago.edu | chances are he is doing just the same"

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