December 1972, astronaut Eugene Cernan (U.S.) became the last person to set foot on the moon. See more

It takes a plastic container 50,000 years to start decomposing. See more

Every single "all a's" domain name, from a.com to aaa..aaa.com (63 a's) has been registered! See more

It is impossible for a solar eclipse to last for more than 7 minutes 58 seconds. See more

The telescope on Mount Palomar, California, can see a distance of 7,038,835,200,000,000 million miles. See more

The typical laboratory mouse runs 2.5 miles per night on its treadmill. See more

If you are locked in a completely sealed room, you will die of carbon dioxide poisoning before you will die of oxygen deprivation. See more

You cannot sneeze with your eyes open. See more

Hot water weighs less than cold water for a given volume. See more

Rain falls at 11 km/h. See more

Every 5 seconds a computer gets infected with a virus. See more

A sneeze travels out of your mouth at over 100 mph! See more

Electricity doesn't move through a wire but through a field around the wire. See more

More than 50% of the people in the world have never made or received a telephone call. See more

The screwdriver was invented before the screw. See more

The can opener was invented 48 years after cans were introduced. See more