Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The average home creates more pollution than does the average car.
33
Diamonds can be shattered with a hammer.
-104
Sound at the right vibration can bore holes through a solid object.
134
Your brain is 80% water.
525
Nylon is made from coal and petroleum.
42