According to studies, men change their minds two to three times more often than women.
72
A cubic yard of air weighs about 2 pounds at sea level.
31
The average home creates more pollution than does the average car.
33
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Sound travels about 4 times faster in water than in air.
408
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Aluminum used to be more valuable than gold!
84
Scientists in Germany have developed a candy that doesn't cause cavities.
11