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
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Hot water can freeze faster than cold water.
181
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
The bark of an older redwood tree is fireproof.
65
No matter how cold it gets, gasoline will not freeze.
107