One cubic foot of gold weighs more than 1,200 pounds!
78
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
One 75-watt bulb gives more light than three 25-watt bulbs.
57
According to studies, men change their minds two to three times more often than women.
72
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
