Number of days writer Richard Kerr has failed to inform his Science readers of the confirmation of nanodiamonds at the YDB: 2 years, 5 months, and 29 days
It seems as though the thorium, a component of super nova debris, explodes as it enters Earth’s oxygen and water rich atmosphere.
Perhaps the large hole that was made in the Russian lake was made by a piece of debris as small as a golf ball.
A pyrophoric substance (from Greek πυροφορος, purophoros, “fire-bearing”) is a substance that will ignite spontaneously in air (cf. hypergolic).[1] Examples are iron sulfide and many reactive metals including uranium, when powdered or thinly sliced. Pyrophoric materials are often water-reactive as well and will ignite when they contact water or humid air. They can be handled safely in atmospheres of argon or (with a few exceptions) nitrogen. Most pyrophoric fires should be extinguished with a Class D fire extinguisher for burning metals.
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It seems as though the thorium, a component of super nova debris, explodes as it enters Earth’s oxygen and water rich atmosphere.
Perhaps the large hole that was made in the Russian lake was made by a piece of debris as small as a golf ball.
A pyrophoric substance (from Greek πυροφορος, purophoros, “fire-bearing”) is a substance that will ignite spontaneously in air (cf. hypergolic).[1] Examples are iron sulfide and many reactive metals including uranium, when powdered or thinly sliced. Pyrophoric materials are often water-reactive as well and will ignite when they contact water or humid air. They can be handled safely in atmospheres of argon or (with a few exceptions) nitrogen. Most pyrophoric fires should be extinguished with a Class D fire extinguisher for burning metals.
http://en.ria.ru/science/20130222/179621800/Meteorite-Fragment-Brought-to-Moscow.html
Fragments found in lake.