The Mysterious Tunguska Event

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The Mysterious Tunguska Event - Best Of Carl Sagan's Cosmos (Part 19)

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BEST OF CARL SAGAN'S "COSMOS":

1) 10 Years After: Carl Sagan & Ann Druyan Reflect:
http://www.youtube.com/watch?v=leTNfwfH0Jc
2) Lost Between Immensity And Eternity:
http://www.youtube.com/watch?v=vIVsDg6U0LU
3) The Realm Of The Galaxies:
http://www.youtube.com/watch?v=1axoV6HhWfI
4) Our Galaxy, The Milky Way:
http://www.youtube.com/watch?v=eOazBTHzRYA
5) Our Solar System:
http://www.youtube.com/watch?v=iBqjob-UVeo
6) Eratosthenes And The Round Earth Model:
http://www.youtube.com/watch?v=en5UKtcNujI
7) The Library Of Alexandria:
http://www.youtube.com/watch?v=vVQs4B2jAW0
8) A Short History Of The Universe:
http://www.youtube.com/watch?v=7n2r0qOxJ6k
9) Artificial And Natural Selection:
http://www.youtube.com/watch?v=i3uToVWZkWM
10) The Cosmic Year:
http://www.youtube.com/watch?v=yFqbm_94nTM
11) Tree Of Life - 4 Billion Years Of Evolution:
http://www.youtube.com/watch?v=KF0UECN4ndA
12) The Miracle Of Life:
http://www.youtube.com/watch?v=TOyojWeOYNA
13) DNA - The Common Basis Of Life:
http://www.youtube.com/watch?v=ecmuvjSykf8
14) Abiogenesis The Origin Of Life:
http://www.youtube.com/watch?v=yet1xkAv_HY
15) Astronomy vs Astrology:
http://www.youtube.com/watch?v=ImaQS9NJ0nI
16) Pictures In The Sky:
http://www.youtube.com/watch?v=iwCAwc4bge4
17) Ancient Astronomy:
http://www.youtube.com/watch?v=H-5dwJwau1Y
18) Triumph Of Modern Science Over Medieval Superstition:
http://www.youtube.com/watch?v=8lfmRqT-B_c
19) The Mysterious Tunguska Event:
http://www.youtube.com/watch?v=irVof7adq4s

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The Tunguska Event, or Tunguska explosion, was a powerful explosion that occurred near the Podkamennaya (Lower Stony) Tunguska River in what is now Krasnoyarsk Krai of Russia, on June 30, 1908 (June 17 in the Julian calendar, in use locally at the time).

Although the cause of the explosion is the subject of debate, it is commonly believed to have been caused by the air burst of a large meteoroid or comet fragment at an altitude of 510 kilometres (36 miles) above the Earth's surface. Different studies have yielded varying estimates of the object's size, with general agreement that it was a few tens of metres across.

Although the meteor or comet burst in the air rather than directly hitting the surface, this event is still referred to as an impact. Estimates of the energy of the blast range from 5 megatons[4] to as high as 30 megatons of TNT, with 1015 megatons the most likely—roughly equal to the United States' Castle Bravo thermonuclear bomb tested in late February 1954, about 1,000 times as powerful as the atomic bomb dropped on Hiroshima, Japan and about one-third the power of the Tsar Bomba, the largest nuclear weapon ever detonated.

The explosion knocked over an estimated 80 million trees over 2,150 square kilometres (830 square miles). It is estimated that the shockwave from the blast would have measured 5.0 on the Richter scale. An explosion of this magnitude is capable of destroying a large metropolitan area. This possibility has helped to spark discussion of asteroid deflection strategies.

http://en.wikipedia.org/wiki/Tunguska_event

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Carl Edward Sagan, Ph.D. (1934-1996) was an American astronomer, astrochemist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI).

He is world-famous for writing popular science books and for co-writing and presenting the award-winning 1980 television series "Cosmos: A Personal Voyage", which has been seen by more than 600 million people in over 60 countries, making it the most widely watched PBS program in history.

A book to accompany the program was also published. He also wrote the novel "Contact", the basis for the 1997 Robert Zemecki's film of the same name starring Jodie Foster.

During his lifetime, Sagan published more than 600 scientific papers and popular articles and was author, co-author, or editor of more than 20 books. In his works, he frequently advocated skeptical inquiry, secular humanism, and the scientific method.

http://www.carlsagan.com
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[XTheSonofTheSunX]

tesla, mystery solved.....

[TRStrider74]

We now know that a rocky or metallic meteor, fall smaller than "football field" size comet that was hypothesized when this video was made, can easily cause this level of destruction. Especially in the event of an air burst like this, the meteor would be all but vaporized, and no trace left behind. In fact, this "event" has been modeled using modern super computers.

Anyway, I really do miss Carl Sagan, I grew up watching him. He is why I love astronomy today. :)

[x2REPx]

Didn't they find diamonds at the site? Or am I confusing this with something else.

[Flusercom]

Good Vids. Thanks for infomations..

[Spasatcom]

Good Video!!.. Very Infomative. Thanks for Shared

[polarface456]

it blew up in mid air and landed in china russia and germany 

[marketdotbeyond]

Agent Smith explains a glitch in the Matrix ... an anomalous comet ...:-)

[mlyness100]

@supercell42 HAHA, it's like 2 caterpillars crawled on his face and died, lol!

[TRStrider74]

@Rel7eGaDe If that helps you sleep at night, haha.

His "Death Ray" would have fried and burned everything in the area, pure and simple. There was no burning or scorching at all, anywhere, only the signs of an explosive shock-wave, and no signs of an explosion.

I have no problems entertaining ideas that mainstream science would label fiction, however when you have the evidence, and still entertain those ideas. Thats where the BS comes into play, blindly overlooking that evidence.

[Rel7eGaDe]

@TRStrider74 lol, we all know tesla's experiment was the cause, no need to invent some kind of BS

[me25422]

i like his turtle neck