Crater From 1908 Russian Space Impact Found, Team Says (Tunguska)

National Geographic ^ | 11-7-2007 | Maria Cristina Valsecchi

[canuck_conservative]

Yup, most of the world’s population prefers to be crowded into rat-infested sh!tholes .... er, I mean cities ....

[Extremely Extreme Extremist]

I still think Tesla’s Death Ray did this (Cue Darth Vader breathing)

[blam]

"Amazing how fortunate it is that the event happened in one of the few places on Earth that there was no large population nor even habitation for this even to take place."

Astronomers Clube & Napier say in their book, Cosmic Winter, that we can expect a Tunguska class event about every 100 years.

[aruanan]

Wasn’t Napier one of the authors of The Cosmic Serpent?

[blam]

"Wasn’t Napier one of the authors of The Cosmic Serpent?"

Looks like it was Jeremy Narby

[Liberty Valance]

http://www.foxnews.com/story/0,2933,286807,00.html

[blam]

Neat pictures, thanks.

[SunkenCiv]

Thanks, both of you. :’)

A possible impact crater for the 1908 Tunguska Event
Terra Nova | 7/01/2007 | Terra Nova
Posted on 06/22/2007 2:46:00 PM EDT by Mike Darancette
http://www.freerepublic.com/focus/f-news/1854726/posts

[SunkenCiv]

:') There has been a similar topic, but hey, that was four months ago, and these pings are infrequent...

· join · view topics · view or post blog · bookmark · post new topic ·

[aruanan]

Different Cosmic Serpent. This one was by Clube & Napier in 1982.

[SunkenCiv]

As Blam noted, Narby has a book by that title, but Clube and Napier's opus (from 1982) was indeed as you noted.

---

The Cosmic Serpent by Victor Clube and Bill Napier ISBN 0876633793 ISBN 057111816X 057111816X, used, ABE UK

---

[SunkenCiv]

Oh wow, I took too long, and looks like you got yet another ISBN version. :’)

[Swordmaker]

My first thought was that I recalled seeing early pictures of still standing, de-branched trees directly under the supposed epicenter of the blast with more and more trees blasted down all pointing away from the blast. That was one of the pieces of evidence that proved it was not an impact event. The Italian theory would not be effected by this evidence.

However, I cannot see how a body entering the atmosphere at orbital or even sub-orbital velocities and then producing a violent megaton equivalent blast could possibly send a 10 meter portion of itself to strike the earth at a remarkably far slower velocity than the main mass.

[Swordmaker]

And Grog...

Or until somebody drinks him to avoid rickets...

[padre35]

The silt evidence seems a bit muddled, if their theory held, they would find particles in the silt of their impact, and they haven’t found any.

Unless of course the Smoking Man actually has the particles and Mulder and Sculley are trying to find both.../s

[Swordmaker]

How big do they think this meteorite was.

A meteorite is the found on the ground residue of a meteor. The meteor does not become a meteorite until it rests on or in the ground. A little picky. I know. Sorry 'bout that. ;^)>

[Swordmaker]

...a Tunguska like event every 100 years...

Thank God, it's only been 99 years since... Oh, oh!

[Robert A Cook PE]

It appears that they investigated on-site and dug samples, then went back home and processed things and images - and, after looking at the overhead pictures, then “discovered” the crater might be under the lake.

So, efforts going back (braving the tens of billions of mosquitoes again! - will likely be focused on the lake area, so after next year they might find residue under the lake sediments.

---

Imagine a “slushy” comet - not a solid single rock or iron mass like a meteor/asteroid remnant. Then, near impact, it builds up enough air pressure/shock wave in front of itself to slow, heat up, and blow itself to bits: so the natural result is a slowing of the mass: not an acceleration away from the original mass like you would see from an internal explosion.

Random shock waves would not create all equal masses of pieces - so one large piece could get pushed up and away from the original trajectory (assume most the comet mass blew up at altitude at some flat (not vertical) angle to earth). Then you would see some large masses go sideways and impact at slower speeds.

[SunkenCiv]

Links from the wiki-wacky-pedia entry (there isn’t one on Clube):

http://www.arm.ac.uk/staff/billn.html
http://www.astrobiology.cf.ac.uk/staff.html
http://www.astrobiology.cf.ac.uk/MNPAPER.pdf

Clube quotes:
http://www.pbs.org/wgbh/nova/transcripts/2212doom.htm
http://abob.libs.uga.edu/bobk/clube90.html

also:

http://discovermagazine.com/1992/jun/deathinjune69

[snip] In the early morning of June 30, 1908, a huge fireball exploded in the sky above Siberia with the force of a 20-megaton nuclear bomb, leveling 400 square miles of remote forest around the Tunguska River. The glow lit up the sky as far away as Western Europe. The Tunguska object, Clube says, was a 150-foot comet fragment—one of the Taurids. [end]

[Captain Beyond]

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