Comment Re:So let me get this straight (Score 1) 137
Before my father retired, he was doing research into hypervelocity impacts. It's really intense and pretty scary. He showed me the results of a glass bead the size of a grain of rice that had been shot out of a magnetic rail gun at 17,000 kph (around the orbital velocity of the shuttle, etc.). The glass bead was shot into a steel plate 1 inch thick and ~1 sq foot in size. The entry hole was the size of a quarter, and the exit hole (yes it went all the way through) was the size of a baseball with frozen metal in a splash pattern heading out of the plate.
So, yea, small things can do a LOT of damage at high speeds. That's one reason that sattelites are covered in ~50 layers of mylar. Each layer takes some of the energy out of the micrometerite, so hopefully it will slow down enough before getting to the sattelite itself