One 75-watt bulb gives more light than three 25-watt bulbs.
57
The average temperature at 40,000 feet above sea level is -60 F.
56
Iron weighs more after it rusts.
16
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Each day, up to 150 species of life become extinct.
-23
Iron weighs more after it rusts.
68
German chemists made a replica of a trophy the size of one molecule.
68
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16