Chelyabinsk - Meteor
igotid88
Posts: 27,782
AP: BREAKING: A Russian emergencies official says at least one meteorite has fallen in Chelyabinsk region
http://bit.ly/15oZJJC
http://bit.ly/15oZJJC
I miss igotid88
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Tom O.
"I never had any friends later on like the ones I had when I was twelve. Jesus, does anyone?"
-The Writer
they are more interested in, "what is up your nose & being picked out, right now" or "what are you stroking, right now"
i watched this thing this morning before my swim. awesome. nearly 1000 people needed medical assisstance. 100 of them people needed to be hospitalized. the sonic boom shattered windows & made roofs collapse.
soon we get the astroid DA14. they say eastern europe will see it but we will not here in the u.s.
this upcoming astroid fly-by will be flying in under some satellites @ some 17,000 miles up there.
this meteor is the shit. i saw a meteor explode once during a meteor shower (location: western washington) as i laid on my picnic table watching the heavens. it went flying through the sky on the other side of my house and i couldn't see it explode but i saw the flash and heard the boom. i missed it by a second or two.
"Hear me, my chiefs!
I am tired; my heart is
sick and sad. From where
the sun stands I will fight
no more forever."
Chief Joseph - Nez Perce
after 20 years of waiting: EV Fox Theatre Detroit-6/26/11;Alpine Valley-9/3/11 & 9/4/11;Toronto-9/11/11;Music Midtown-8/22/12;London, Ontario-7/16/13;Wrigley Field, Chicago-7/19/13
All that I once held as true
I stand alone without beliefs
The only truth I know is you.
I wonder how many Russians soiled themselves today...
Thank you for sending. I heard about the meteor this morning but this is the first chance I've had to actually watch it.
you're welome
http://youtu.be/gcRWpfQljhY
Enter the atmosphere at 60-80 kms altitude at velocities of ~ 20-30 km/s.
They burn through the atmosphere, heating up from the intense pressures from the compacting atomsphere (due to friction). These pressures are so intense they cause the rock to melt and burn, hence the light.
They slow down as they near the Earth's surface to speeds of 6-8 km/s, at approximately 10-20 kms above the surface. During this burning, called "light flight" the meteor undergoes such intense pressures, it explodes, sometimes several times, as seen by intense bursts of light.
Those people that are underneath it, will experience an intense shock wave and a deafening sonic boom that will cause buildings to shake.
Once the fireball stops burning, knows as "dark flight", pieces continue to fall, reaching terminal velocity.
A meteor of this size could have been somewhere in the range of a meter up to 15 meters in diameter when it first entered the atmosphere, weighing 1000 kg to 10,000 kg.
After it burns and explodes into thousands of pieces, the amount of debris that falls can be in the range of 1/10th of the initial mass, in this case, up to 100kg to 1000 kg. The pieces that fall to the earth are now known as "meteorites." They will disperse over an oval shaped area in the range of 10 to 25 kms long, by 4 to 8 kms wide. The next thing to do... COLLECT SPACE ROCKS!
Sound travels 343m/s. It took somewhere around 15 to 30 seconds (depending on who reported it) for the shockwave to reach earth. That puts the observer 5-10km below the passing fireball. Or about the height of a passing airliner which cruises at say 1000km/h max.
This fireball "cruised" by at an average speed of 54,000 km/h. Just to put that into another perspective, the circumference of the earth is about 40,000 kms. If the fireball could magically race itself around the earth, it would come in at around 45 mins per lap. Mind staggering numbers
I'll push my own glasses up my nose now
Small hobby of mine.
2010 WATCH IT GO TO FIRE!!