单词：Metchnikoff's(Mechnikov's)theory
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Well, you've probably all heard about Nik Walenda, the man who recently walked 1,500 ft above the Gran Canyon on a two inch thick wire, with no protection, and no net. I watched him 'live' as he took every step, and every breath. I actually found mys
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Women's Rights Activists Encouraged by New French President The easy part of Olivia Cattan's day ends at lunchtime, when she leaves her work as a pre-school assistant and starts her other job as a journalist and founder of the feminist organization P
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before Barack Obama became president, he was a community organizer on Chicago's south side Long before Barack Obama came to Washington as a U.S. senator, then won election as the first African-American president of the United States, he was a communi
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In Tom Wolfe's 'Kingdom,' Speech Is The One Weird Trick play pause stop mute unmute max volume 00:0005:06repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin.
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Pareto's Principle - The 80-20 Rule How the 80/20 rule can help you be more effective. In 1906, Italian economist Vilfredo Pareto created a mathematical formula to describe the unequal distribution of
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By Peta Thornycroft Southern Africa 22 February 2008 President Robert Mugabe has spoken out for the first time on the new presidential challenger, former finance minister Simba Makoni. Peta Thornycroft reports that Mr. Mugabe has accused Mr. Makoni o
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