Description
Cosmography101 Class 11.1/3 - Recorded on October 31, 2007 by Bradley Young
"Meteor Showers and Festivals of the Dead" NOTES:
Cultural Shifts and Environmental Changes
Humans victimized by natural Earth Changes more than being the cause of them
Medieval Warming Period a degree Warmer than now – Vikings farming Greenland
Human civilization is the vulnerable factor within Natural catastrophic changes
Nature recovers from extraordinary catastrophes, but small events can reset clock
Tunguska event happened over populated city – 20th century would be vastly different
Meteor Streams / H-chondrite Stream / Stony vs. Iron/metal (Meteor Crater)
Tunguska likely from H-chondrite stony object; Source objects not traceable
Comets fundamental to our understanding of the evolution of life on Earth
Earth Crosses Taurid meteor stream twice per year – once on Halloween
14:40 Break
Continuum of cosmic beasts; comparison between Tunguska and meteor crater objects
For every impact of a metallic object, there will be 70 like the Tunguska blast; Frequency debated
Smaller objects can penetrate atmosphere and impact, can be traced and studies; spectral analysis
Tunguska explosion was hundreds of times bigger than Hiroshima atomic bomb
Lunar Impacts: Moon pelted by chondrites 6/26/76 which is in window for Taurids
Quotes from An H Chondrite Stream re: clusters of objects within streams cause clusters of falls
Atmospheric entry more vertical has better chance of reaching ground or low-level explosion
Objects over fifty feet will cause more severe damage: knock down trees and buildings
10-20 high-atmosphere explosions detected annually – must differentiate from nuclear attacks!
28:19 Break
Explosions over water may cause “Superwaves”
Burckle Crater event only 5000 yrs ago but almost no one knows about it
Other unknown recent impact events in Iraq, and over Europe starting the Dark Age
Cosmic dusting could interrupt the food supply for years causing major havock
Comet evolution of object that broke up before impacting Jupiter – NOT a rare event
Shoemaker-Levy 9: 21 Objects crashed into Jupiter – Any one would terminate life on Earth
Crater Chains: “Catenas” / Cosmic Debris
39:04 Break
If low angle skipper over Tetons in the 70s blew up, we’d have new attitude on space rocks
Orbits of Near-Earth Objects (NEOs) and Earth-crossers
Comet’s Nucleus
Evolving Census of NEOs
Dinosaur killer asteroid at Cretaceous-Tertiary boundary now associated with six different impacts
Clustered impacts, disintegrating parent bodies, and onset of the Ice Age
Halley’s Comet a type of Cosmic Missile filled with thousands of smaller objects
Realization that the trail of debris is a danger, and can’t maneuver Earth like Mill-Falcon
Look beyond Terrestrial to The Cosmic Domain – will find causes for sudden Climate Change
LINKS: https://cneos.jpl.nasa.gov/fireballs/
Tours with Bradley and RC: https://ContactattheCabin.com
Shorts playlist: https://www.youtube.com/playlist?list=PLTRcDAFHjDSi4CQwDXLD5trjSzI8WR2vT
Cosmo101 lectures: https://www.youtube.com/playlist?list=PLTRcDAFHjDSg-bjFZevjMQYOZunJJ-K4k
RC Intro lectures: https://www.youtube.com/playlist?list=PLTRcDAFHjDSjjdVxkM5pC9tNvrwO7g8Gy
#geology #randallcarlson #youngerdryas #cataclysm #cosmicimpact #earthhistory #ancientcatastrophes #extinction #apocalypse #space #ancientmysteries #prehistory #geocosmic #catastrophism #losthistory #asteroids #comets #spacescience #astronomy #taurids #halloween
Produced in association with Unpaved Productions
Copyright YSI Productions LLC
Thanks to Randall for the decades of experiential learning!