stuff i learned this weekend...

~ the earth’s core is thought to be 1% gold, which would cover all seven continents knee-deep
~ the albigensian crusade (1209-1255) against the cathars of france was the first crusade on european soil
~ the hatchet fish (which lives at a depth of 1,500-2,000 ft) has silver sides that act like a mirror and make it invisible. It also has light organs on it’s belly so that it blends in with light as seen from below.
~ the romans had a crane with a system of pulleys that with only 16 pounds of force exerted could lift 4,000 pounds.

~ we know more about the surface of the moon than the abyssal plain
~ magnetic north is moving away from canada at 10 miles per year. it would seem we’re headed for a pole reversal.
~ the tube worms at deep sea vents grow to 6 feet long.
~ friday the 13th is considered unlucky because all the knights templar in france were arrested (and later killed) on this day in 1307.

~ most creatures near the bottom of the ocean cannot see red light.