Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Nylon is made from coal and petroleum.
42
German chemists made a replica of a trophy the size of one molecule.
68
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Indoor pollution is 10 times more toxic than outdoor pollution.
62