Did you know that ...
... a Killer Whale weighing 12,000 pounds (5,450 kilograms) can jump more than 20 feet (6.2 meters) into the air? If we had the same proportional ability, a 160 pound (73 kilogram) man could easily jump to the top of the Sears Tower in Chicago, a distance of over 1,450 feet (450 meters). That would sure beat waiting for the elevator!