Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
One barrel of petroleum holds 42 gallons.
20
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
4.5 pounds of sunlight strike the Earth each day.
27
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
The storage capacity of human brain exceeds 4 Terrabytes.
140
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17