When two lovers kiss, nerves send signals to the brain at the speed of 128 kilometers per hour.
Cows sleep almost as long as humans.
In 1666, the fire that destroyed most of the city of London, at the same time has ended the plague. Mostly because the fire killed infected rats who were the carriers of the disease.
Contrary to popular belief, donkeys belong to one of the smartest ungulates. They, for example, use their chin hair to test whether there is current going through a wire fence and if they have to walk thru dangerous grounds, they will only start if their master walks through first.
It takes no more than 20 moves to solve the Rubik’s Cube.
Each king in the deck of cards represent a great kind from history: spades - King David, clubs - Alexander the Great, hearts - Charlemagne and diamonds - Julius Caesar.
