In zero gravity, a candle's flame is round and blue.
16
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Your thumb is about the same size as your nose.
124
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
The lifespan of mammals is about 1 and a half billion heartbeats.
127
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
In Cuba, hitchhiking is encouraged and government vehicles are legally required to pick up hitchhikers.
4