Iron weighs more after it rusts.
68
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Balsa wood is classified as a hard wood!
41
Billions of neutrinos pass unnoticed through your body every second.
6
The only letter not appearing on the Periodic Table is the letter "J".
180
German chemists made a replica of a trophy the size of one molecule.
68