Only humans shed emotional tears.
331
The face of a penny can hold about thirty drops of water.
85
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
Déjà vu occurs when your brain tries to apply a memory of a past situation to your current one, fails, and makes you feel like it's happened.
12
By raising your legs slowly and laying on your back, you can't sink in quicksand.
105
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
More than 50% of Americans fall asleep on their sides.
86
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14