In 1693, the postage rate of a letter was determined by how much light went through the letter. The less the light went through the letter the more expensive the rate would be. This technique was referred to as candling.

All the Krispy Kreme donut stores collectively could make a doughnut stack as high as the Empire State Building in only 2 minutes.

The sun is approximately 75% hydrogen, 25% helium by mass.

AMAZING FACTS