2016
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8 hours ago · In 1974, Hawking predicted that black holes are not entirely black but emit small amounts of thermal radiation at a temperature ħc 3 /(8πGMk B); this effect has become known as Hawking radiation. By applying quantum field theory to a static black hole background, he determined that a black hole should emit particles that display a perfect black body spectrum .
8 hours ago · e. Stephen Joseph Harper PC CC AOE (born April 30, 1959) is a Canadian politician who served as the 22nd prime minister of Canada from 2006 to 2015. Harper is the first and only prime minister to come from the modern-day Conservative Party of Canada, serving as the party's first leader from 2004 to 2015. Harper studied economics, earning a ...
