Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Cold water weighs more than hot water.
93
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Research indicates that plants grow healthier when they are stroked.
173
The storage capacity of human brain exceeds 4 Terrabytes.
140
One third of the electricity produced on earth is used to power electric light bulbs!
75