Since 1982, a radio frequency emanating from Russia has been broadcasting a buzzer-like sound and, periodically, an unknown voice reads orders, names, and numbers. No one knows where exactly it is coming from or what it means.
13
Mushrooms are more closely related to humans than they are to plants.
47
Diamonds mined in Brazil are harder than those found in Africa.
40
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
If you had 10 billion $1 notes and spent one every second of every day, it would require 317 years for you to go broke.
109
Like fingerprints, everyone's tongue print is different.
250
A fire in Australia has been burning for more than 5,000 years!
91