One cubic foot of gold weighs more than 1,200 pounds!
78
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Sound travels about 4 times faster in water than in air.
408
Sound at the right vibration can bore holes through a solid object.
134
One third of the electricity produced on earth is used to power electric light bulbs!
75
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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