Keeping up with the times as always, I've only recently heard about the February 15 meteor impact near Chelyabinsk, and have, today, finally dragged myself to the internet to see all the dash-cam videos.
` Installed for the purpose of recording events in cases of police corruption or insurance scammers, dashboard cameras have provided many angles of viewing the 7,000-ton meteor as it flared up in the earth's atmosphere. (Hooray for legal fraudsters?)
As it approached the earth, the meteorite was only 50 feet in diameter when it exploded into an enormous fireball (sometimes called a bolide), with the strength of a large nuclear warhead at 500 kilotons. Luckily for the folks below, this happened so high in altitude that the air was too thin to conduct much of this force.
` The infrasound from the shockwaves were detected by a global network of monitoring stations dedicated to use for upholding the Comprehensive Nuclear Test Ban Treaty. (These same stations also detected North Korea's third nuclear test on February 12, finding it to be laughably small in comparison to the meteorite, although that Kim Jong young-un would probably claim otherwise.)
There are, of course, many videos of said shockwaves, blowing out windows and sending glass and debris flying. In this case, stationary security cameras were more instrumental in getting these shots, as well as folks who have whipped out their video cameras in response to the meteor.
From this, some 1,500 people were reported injured (mostly from glass), and to add insult, many homes were missing windows or otherwise damaged during the winter in Siberia! (And here I was thinking that single-pane aluminum windows are bad!)
Not only is this the second well-documented impact of an enormous meteor recorded in science history, but it is also the second such meteor impact recorded in Siberia. (Thus, without Siberia, none of this could have happened...)
` The odds of two huge meteors striking Siberia really aren't so low, considering that its borders stretch to nearly 10% of the earth's land surface, and the fact that the two impact sites are about three thousand miles apart.
More interesting (to me) is learning that there have been other large meteor impacts at times between 1908 and 2013, which I've never heard of before. However, I am getting ahead of myself...