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
Pure water (H2O) does not conduct electricity on its own.
46
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10