Sound travels about 4 times faster in water than in air.
408
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The storage capacity of human brain exceeds 4 Terrabytes.
140
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75