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
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In zero gravity, a candle's flame is round and blue.
16
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3