Thursday, April 16, 2009

Particle collisions for fun and proft

Mini-AIR points out the following awesome article.

Title: The expected frequency of collisions of small meteorites with cars and aircraft

Abstract: The cumulative distribution cf2>Ncf1>(cf2>dcf1>) of diameters of Earth-Crossing Asteroids (ECAs) derived by Poveda et al. (Poveda et al., 1998, submitted) is used to estimate the frequency of collisions of meteoroids with cars and with aircraft. The expected frequency of collisions of a car with a meteorite larger than 10 cm in diameter turns out to be one impact every 16 years. This frequency is consistent with the known incidence of such events (Lewis, 1996).The expected frequency of collisions of a cruising airplane with a meteorite larger than 1 cm in diameter turns out to be one impact every 30 years. Such an impactor hitting an airplane at a velocity of several hundreds of meters per second could cause a serious accident.


Comment: Wow! Now that's what I call "awesome".

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