Comment Re:One rule to rule them all, eh? (Score 1) 278
No, MerlTurkin has it right. Meteors are cold while they're out in space. When they hit the atmostphere, the surface heats up quickly, and the heated parts chip off because of temperature shear and create an ablative barrier to further heating. The surface of a meteor is warm, but not hot when it hits the ground, and the inside is still frozen.
Of course, Mrs. O'Leary's cow wasn't very hot when it hit the lantern and it still burned down Chicago. No telling what was in that warehouse from the posted story.
The speed of most meteorites is almost always based on the speed of the earth flying through meteor clouds, not the speed of the meteor clouds, so it's fairly consistent.