Some fish can make electricity. They surround themselves with an electrical field. If anything moves in the field, the fish can feel it. Their electrical fields are able to detect food and their enemies.
Is it a meteorite?
Is it a meteorite? Steven Schoner of the American Meteorite Survey
says there are several ways to tell if a rock came from outer
space. Meteorites are denser than Earth rocks, they are rusty brown
if they have been on the ground for a long time, they often have a
thin black crust, the exterior is smooth with rounded edges and
"thumbprints" on some flat areas, and meteorites rarely have
"bubble holes." Most importantly, nearly all meteorites are
magnetic. DECEMBER 12, 2000
Cool Articles
