Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
According to studies, men change their minds two to three times more often than women.
72
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
A cubic yard of air weighs about 2 pounds at sea level.
31
Each day, up to 150 species of life become extinct.
-23