The average temperature at 40,000 feet above sea level is -60 F.
56
Sound travels fifteen times faster through steel than through air.
134
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Sound travels about 4 times faster in water than in air.
408
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101