Pumice is the only rock that floats on water.
14
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Nearly 50% of the world's scientists are assigned to military projects.
71
A 'jiffy' is an actual unit of time for 1/100th of a second!
66