Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
4.5 pounds of sunlight strike the Earth each day.
27
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Iron weighs more after it rusts.
68
One 75-watt bulb gives more light than three 25-watt bulbs.
57
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
According to studies, men change their minds two to three times more often than women.
72