[meteorite-list] Moon/Earth impact rates

From: John Lutzon <jl_at_meteoritecentral.com>
Date: Sun, 3 Jul 2011 22:16:16 -0400
Message-ID: <A4F662B459AF47F9865FBA8A4FD5945B_at_Home>

I have next weekend open---Beam me up Sterling

John

----- Original Message -----
From: "Sterling K. Webb" <sterling_k_webb at sbcglobal.net>
To: "E.P. Grondine" <epgrondine at yahoo.com>;
<meteorite-list at meteoritecentral.com>
Sent: Sunday, July 03, 2011 10:12 PM
Subject: Re: [meteorite-list] Moon/Earth impact rates


> EP,
>
>> All the theories in the world added together do not amount to one fact.
>
> But since we do not have ANY facts about the impact
> rates on the Moon (or Mars or Tital or Ganymede or
> anywhere at all and only inferential data for our own
> home planet), the sum accumulation of facts is... ZERO.
>
> We ain't got one fact.
>
> And the contribution of reason / inference from
> known quantities amount to considerably more
> than zero.
>
> Am I not the the one who is always saying, about
> endless speculation about the geology of Mars or
> asteroids, that we will never know until we have
> "boots on the ground," 100 geologists on Mars-suits,
> carrying those funny little hammers, and scooting
> around in monofuel Humvees, living in solar tents?
>
> Until then...
>
>
> Sterling K. Webb
> ----------------------------------------------------------------------------
> ----- Original Message -----
> From: "E.P. Grondine" <epgrondine at yahoo.com>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Sunday, July 03, 2011 6:55 PM
> Subject: [meteorite-list] Moon/Earth impact rates
>
>
>> Hi Sterling -
>>
>> Usually, you are spot on, but in this case...
>>
>> In fact, no one knows if the Earth sweeps stuff up for the Moon, or the
>> Moon pulls in more stuff that hits the Earth. NASA's garbage estimates
>> for ELEs are a perfect example of how bad their "modeled" impact
>> estimates are; NASA's estimated human ELE rates are even worse - they
>> appear to be off by two orders of magnitude.
>>
>> Earth impact rates need to be determined from Earth data. Then a more
>> general model may be worked out, using accretion data from all bodies in
>> our solar system.
>>
>> All the theories in the world added together do not amount to one fact.
>>
>> As far as the effects of hyper-velocity dust goes, I seem to recall parts
>> of Surveyor being examined after lunar surface exposure.
>>
>> all the best,
>> E.P. Grondine
>> Man and Impact in the Americas
>>
>>
>>
>>
>>
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Received on Sun 03 Jul 2011 10:16:16 PM PDT