In 10 minutes, a hurricane releases more energy than all the world’s nuclear weapons combined.
At the height of its power in 400 BC, the Greek city of Sparta had 25,000 citizens and 500,000 slaves.
Julius Caesar’s autograph is worth about $2,000,000.
People say “bless you” when you sneeze because your heart stops for a millisecond.
A shrimp’s heart is in its head.