The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The storage capacity of human brain exceeds 4 Terrabytes.
140
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
In zero gravity, a candle's flame is round and blue.
16
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108