Re: OT: We got it up!

On Thu, 28 Jul 2005 18:37:34 +0100, Pooh Bear
<rabbitsfriendsandrelations@xxxxxxxxxxx> wrote:

>John Larkin wrote:
>
>> On Thu, 28 Jul 2005 08:54:05 -0700, Jim Thompson
>> <thegreatone@xxxxxxxxxxx> wrote:
>>
>> >On Thu, 28 Jul 2005 07:55:49 -0700, John Larkin
>> ><jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>> >
>> >[snip]
>> >>
>> >>No, one could also move earth to a further-out orbit. Turns out that
>> >>it's not hard.
>> >>
>> >>John
>> >>
>> >
>> >Oh? Really ?:-)
>> >
>> > ...Jim Thompson
>>
>> Yup. You just nudge the occasional asteroid into a hyperbolic flyby of
>> earth. That transfers angular momentum from the asteroid belt - they
>> have lots to spare - to earth. The numbers apparently work. The
>> 'nudge' part takes a miniscule amount of energy and a good aim.
>>
>> John
>
>I can't remotely imagine that an asteroid would have enough energy to
>impart to make the earth's orbit significantly different.
>
>I expect some basic physics should resolve the issue.
>
>Graham
>

It would take thousands of asteroid passes spaced over millions of
years, just enough to keep ahead of the sun's expansion. No rush.

John



.

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