The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
The bark of an older redwood tree is fireproof.
65
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
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
If the chemical sodium is dropped into water it will immediately and violently explode.
67
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5