The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
There are more than 50,000 earthquakes throughout the world every year!
47
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
One cubic mile of seawater contains about 50 pounds of gold.
79
The state with the longest coastline in the Continental U.S. is Michigan.
31