http://news.bbc.co.uk/1/hi/technology/7234544.stm
The heat differentials expand or constrict wax, which provides energy for
propulsion.
Battery power needed to sensors and communications.
Lawrence
In reply to Lawrence de Bivort's message of Sat, 9 Feb 2008 11:08:28 -0500:
Hi,
[snip]
>
>http://news.bbc.co.uk/1/hi/technology/7234544.stm
>
>The heat differentials expand or constrict wax, which provides energy for
>propulsion.
>
>Battery power needed to sensors and communications.
It would see
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