Cold water weighs more than hot water.
93
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Research indicates that plants grow healthier when they are stroked.
173
Scientists are now able to grow 'beating' heart tissue in a lab!
162