One third of the electricity produced on earth is used to power electric light bulbs!
75
Most dust particles in your house come from dead skin.
48
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Sound travels fifteen times faster through steel than through air.
134
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61