Do You Know?

The can opener was invented 48 year after cans were introduced.

If you have a car remote and you step out of its range, point it to your head and it will work again!

If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.

A cat's urine glows under a black light.

We know more about the surface of the moon than we do about the bottom of the ocean.

Like fingerprints, everyone's tongue print is different.