One cubic foot of gold weighs more than 1,200 pounds!
78
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Diamonds can be shattered with a hammer.
-104
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Sound travels about 4 times faster in water than in air.
408
One barrel of petroleum holds 42 gallons.
20
Liquid TIDE laundry detergent glows under a blacklight.
96