Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
Sound travels about 4 times faster in water than in air.
408
No matter how cold it gets, gasoline will not freeze.
107