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Re: (meteorobs) Hello meteorobs
> << We only know of two such impacts (please correct
> me if I'm wrong) during the last century or so.
>
> Malcolm,
> I'm not sure which two impacts for this century you are referring to, but the
> one's I'm aware of is the tunguska event in Siberia, The 1947 sikhote-Alin
> event also in Siberia, and the two tunguska-like events both in the amazon
> basin in the 1930's.
> George Zay
What's a factor of two in astronomy? (-: It's a question of a
threshold in terms of tons of TNT as to which ones to include. I
don't have my WGNs, meteor books, and the Observatory's recent S&Ts
are being bound, so I couldn't check my facts, hence my caveat.
The Sikhote-Alin was a shower of meteorites rather than one big
integrated body. If the shower had landed on a city, there would have
been a big mess especially where the largest (about 2 tonnes) hit, but
would many people have been killed? There weren't vast swaths of
trees flattened, were there? Readers should consult the article in
S&T about a year ago for more-precise details.
I was thinking of Tunguska and one in Brazil.
Malcolm
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