In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
The average temperature at 40,000 feet above sea level is -60 F.
56
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Most dust particles in your house are made from dead skin!
67
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88