[meteorite-list] New Carancas article, same old crap

From: Jason Utas <meteoritekid_at_meteoritecentral.com>
Date: Sat, 5 Jul 2008 14:18:57 -0700
Message-ID: <93aaac890807051418x3c1150fatb7a2402d0b6924d6_at_mail.gmail.com>

Hola Michael, Armando, All,
I found a nice website for calculating mass/energy/velocity:

http://www.1728.com/energy.htm

Using that, and the estimate from Peter Brown's (Univ. W. Ontario)
study of the event, which stated that roughly .03 kton TNT energy was
released, I was able to get the data for a "basketball-sized" stone of
20kg.

In order to release that much energy, it would have had to have been
moving at roughly 112.04 km/s. This is faster than the encounter
velocity of even the fastest known moving bodies of any size within
the solar system, as even comets only get up to speeds in the 50 km/s
range with any frequency.

To be perfectly frank, the lpl _at_ UofA states the following:

"The minimum impact velocity on Earth is 11 km/s. Typical impact
velocities are 17 km/s for asteroids and 51 km/s for comets. The
maximum Earth impact velocity for objects orbiting the sun is 72
km/s."

http://www.lpl.arizona.edu/impacteffects/

So, I reran some of the numbers and came out with the following:

The minimum possible mass of the impactor was (using only this model,
and disregarding all other studies and reports which suggest of a mass
> 1 tonne) 48kg.

Michael Farmer recovered and purchased in total < 3 kg, from what I understand.

Therefore, even if you do blame Michael for taking that much, the
Peruvian government left at least, given the total recovered weight
(~13 kg), and the minimum possible weight using the simple KE =
1/2mv^2, roughly 35 kg of space rock in the crater.

Or maybe they left several tonnes of it.

Either way, you can stop this incessant nagging. You're wrong.
Physics says so.
Even if you don't trust me, you can work it out for yourself.

...Well, I hope you can.

Best Regards,

Jason


I'll be out of reach for a day or so, but will reply in as prompt a
manner as circumstances allow.

On Fri, Jul 4, 2008 at 8:44 AM, Michael Farmer <meteoriteguy at yahoo.com> wrote:
> "The mass was stolen by some American as usual" What a pathetic statement by you. To steal would be to take something that is not yours. I paid for every gram of meteorite from the people who owned it, the Aymara people who's land it fell on. And somehow I doubt that my 700 grams of meteorite comprised the mass. Either way, the amount I bought was reported to the scientists who did the work on the meteorite, so the fact that pieces were sold on ebay by Pervians, Bolivians, Americans, Germans etc, has no affect on the scientific study of the crater or meteorite. Why no hatred or mention of them Armando, or is it only Americans who steal, the Bolivans got theirs legally in your eyes right? Get over yourself Armando, you are clearly nothing more than a bitter anti-American, nothing more. Funny, Americans have had wars with Germany, Italy, and England, but never with Portugal, so where does this intense hatred come from? We all would like to know. I think it
> comes from the fact that I beat you to the prize in your own country, of course you say I stole Ourique, even though I bought most of it. You also bought a large piece you told this list, did you somehow pay with different money which means your piece is not stolen? I still cant figure this one out.
> Michael Farmer
>
>
> --- On Fri, 7/4/08, Armando Afonso <armandoafonso at oniduo.pt> wrote:
>
>> From: Armando Afonso <armandoafonso at oniduo.pt>
>> Subject: Re: [meteorite-list] New Carancas article, same old crap
>> To: "Michael Farmer" <meteoriteguy at yahoo.com>, meteorite-list at meteoritecentral.com
>> Date: Friday, July 4, 2008, 9:30 AM
>> The size of a crater is related not only to the impactor?s
>> mass, but to
>> velocity, as everyone knows.
>> If none of the variables could be measured (the mass was
>> stollen by some
>> american and sold in ebay, as usual :-) ), how can you have
>> a better idea
>> than others of the size of the meteoroid?
>>
>> Armando
>>
>>
>> ----- Original Message -----
>> From: "Michael Farmer"
>> <meteoriteguy at yahoo.com>
>> To: <meteorite-list at meteoritecentral.com>
>> Sent: Friday, July 04, 2008 4:13 PM
>> Subject: [meteorite-list] New Carancas article, same old
>> crap
>>
>>
>> > http://www.livinginperu.com/news-6826
>> >
>> > Note the last part, they still think the Carancas
>> meteorite was the size
>> > of a basketball. When will we ever get these
>> scientists and news people
>> > off of that idiotic size comparison. I have seen it
>> like 50 times for huge
>> > fireballs and meteorite falls. They always say
>> "it was the size of an
>> > acorn or basketball" or some crap like that. The
>> only way a basketball
>> > sized object could make a crater like that would be if
>> it had a little
>> > nuclear bomb inside.
>> > Happy 4th to all Americans on the list.
>> > Michael Farmer
>> >
>> >
>> >
>> >
>> > ______________________________________________
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>> >
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>> >
>> >
>> >
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Received on Sat 05 Jul 2008 05:18:57 PM PDT