Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
The reindeer is the only mammal that can see UV light.
17
Drivers kill more deer than hunters do.
660
The first webcam was used in 1991 by Cambridge researchers for checking the coffee pot without leaving their desks.
10
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
If two pieces of metal touch in space, they become permanently stuck together.
808
