The storage capacity of human brain exceeds 4 Terrabytes.
140
In zero gravity, a candle's flame is round and blue.
16
Research indicates that plants grow healthier when they are stroked.
173
The only letter not appearing on the Periodic Table is the letter "J".
180
The smell of freshly cut grass is actually a plant distress call.
31
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5