Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Diamonds can be shattered with a hammer.
-104
Nylon is made from coal and petroleum.
42
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6