Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Hot water can freeze faster than cold water.
181
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
A cubic yard of air weighs about 2 pounds at sea level.
31
The average temperature at 40,000 feet above sea level is -60 F.
56
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21