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13 members have voted

rxwine
rxwine
Joined: Feb 28, 2010
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January 10th, 2021 at 2:32:56 PM permalink
Breaking out my umbrella.
Quasimodo? Does that name ring a bell?
Greasyjohn
Greasyjohn
Joined: Dec 8, 2013
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January 10th, 2021 at 6:55:05 PM permalink
Quote: billryan

If an object 100 meters by 100 meters entered the atmosphere, wouldn't most of it either burn up or break off so the objects hitting the ground would be only a fraction of the original?



Here’s some information that helps:

Stony asteroids with a diameter of 4 meters (13 ft) enter Earth's atmosphere about once a year. Asteroids with a diameter of 7 meters enter the atmosphere about every 5 years with as much kinetic energy as the atomic bomb dropped on Hiroshima (approximately 16 kilotons of TNT), but the air burst is reduced to just 5 kilotons.[18] These ordinarily explode in the upper atmosphere and most or all of the solids are vaporized.[21] However, asteroids with a diameter of 20 m (66 ft), and which strike Earth approximately twice every century, produce more powerful airbursts. The 2013 Chelyabinsk meteor was estimated to be about 20 m in diameter with an airburst of around 500 kilotons, an explosion 30 times the one over Hiroshima. Much larger objects may impact the solid earth and create a crater.

See entire article: https://en.m.wikipedia.org/wiki/Impact_event
gordonm888
gordonm888
Joined: Feb 18, 2015
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January 10th, 2021 at 9:37:31 PM permalink
If an asteroid or meteor breaks up in the atmosphere the kinetic energy of the object is transferred to the atmosphere as heat. The superheated hot air rushes outward knocking over trees and buildings and incinerating all life up to some radial distance.

The larger the object, the more chance that it does not burn up in the atmosphere -which would result in an impact crater (Or create a tsunami if it impacted at sea.).
So many better men, a few of them friends, are dead. And a thousand thousand slimy things live on, and so do I.
gordonm888
gordonm888
Joined: Feb 18, 2015
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January 12th, 2021 at 7:37:22 PM permalink
Apophis was named after a demon serpent who personified evil and chaos in ancient Egyptian mythology.

Apophis is commonly called The God of Chaos.





On the above image, the blue orbit is Earth, the yellow orbit is Apophis and the white orbit is Venus. So Apophis orbits the sun and is closer to the Sun than Earth for >50% of its orbit.
Last edited by: gordonm888 on Jan 12, 2021
So many better men, a few of them friends, are dead. And a thousand thousand slimy things live on, and so do I.
Greasyjohn
Greasyjohn
Joined: Dec 8, 2013
  • Threads: 133
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January 17th, 2021 at 9:44:31 AM permalink
https://www.youtube.com/watch?v=4Wrc4fHSCpw

This is a very informative video.
odiousgambit
odiousgambit
Joined: Nov 9, 2009
  • Threads: 306
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January 19th, 2021 at 1:55:22 AM permalink
Quote: Greasyjohn

https://www.youtube.com/watch?v=4Wrc4fHSCpw

This is a very informative video.

This is also pretty good
the next time Dame Fortune toys with your heart, your soul and your wallet, raise your glass and praise her thus: “Thanks for nothing, you cold-hearted, evil, damnable, nefarious, low-life, malicious monster from Hell!” She is, after all, stone deaf. ... Arnold Snyder

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