A guy is walking down the street with his friend. He says to his friend, "I'm just a walking economy."
His friend replies, "What do you mean?"
"It's like this: My hairline is in recession, my stomach is a victim of inflation, and the combination of these factors is putting me into a deep depression.
Tunguska meteoriteIn 1908, at around 7:15 am, northwest of Lake Baikal, Russia, a huge fireball nearly as bright as the Sun was seen crossing the sky. Minutes later, there was a huge flash and a shock wave felt up to 650 km (400 mi) away. Over Tunguska, a meteorite over 50-m diameter, travelling at over 25 km per second (60,000 mph) penetrated Earth's atmosphere, heated to about 10,000 ºC and detonated 6 to10 km above the ground. The blast released the energy of 10-50 Megatons of TNT, destroying 2,200 sq km of forest leaving no trace of life. The Tunguska rock came out of the Taurid Meteor storm that crosses Earth's orbit twice a year. The first scientific expedition for which records survive was made by Russian mineralogist Leonid Kulik in 1927.[Image: a view of charred forest trees blown to the ground show the direction of the blast.] |
