A side effect of these chemical reactions is a lot of heat. The fact that the chemical reactions in a fire generate a lot of new heat is what sustains the fire. Many fuels burn in one step. Gasoline is a good example. Heat vaporizes gasoline and it all burns as a volatile gas. There is no char. Humans have also learned how to meter out the fuel and control a fire.
Researchers just mapped their genome for the first time to find out. By Paca Thomas. Bowhead whales can live more than 200 years, and they rarely succumb to cancer or disease. Searching for clues about their longevity, researchers just mapped their entire genome. Watch more in the video above.
1 Carmelo Flores Laura, a native Aymara, walks near his home in the village of Frasquia, Bolivia, Tuesday, Aug. 13, 2013. If Bolivia's public records are correct, Flores is the oldest living person ever documented. They say he turned 123 a month ago. To what does the cattle and sheepherder owe his longevity? I walk a lot, that's all.