TED英语演讲稿：为什么X代表未知。
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i have the anse from?
about six years ago i decided that i e to think of as finally made their e sounds in arabic that just don't make it through a european voice box ething" just like the the english the classical greek in the form of the letter kai.
later when this material was translated into a common european language, which is to say latin, they simply replaced the greek kai with the latin x. and once that happened, once this material was in latin, it formed the basis for mathematics textbooks for almost 600 years.
but now we have the answer to our question. why is it that x is the unknown? x is the unknown because you can't say "sh" in spanish. (laughter) and i thought that was worth sharing.
(applause)
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TED英语演讲稿：我们为什么快乐？
the one-and-a-quarter pound brain of our ancestor here, Habilis, to the almost three-pound meatloaf that everybody here has beting paraplegic. So, just give it a moment of thought. You probably dont feel like you need a moment of thought.
Interestingly, there are data on these tists and psychologists around the country have been doing, have revealed something really quite startling to us, something field studies to laboratory studies, as, you have this machine. Unlike Sir Thomas, you seem not to know it. (Laughter)
e experimental evidence, you dont have to look very far for evidence.
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e level is important. And yet, for most of us, the same time: Sleep is the golden chain that ties health and our bodies together. Extremely prophetic, by Thomas Dekker, another Elizabethan dramatist.
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TED英语演讲稿：为什么节食减肥没效果？
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Three and a half years ago, I made one of the best decisions of my life. As my Ne an evolutionary perspective, your bodys resistance to e permanent. If you stay at a high s call them intuitive eaters and controlled eaters. The interesting thing is that intuitive eaters are less likely to be overing and then binging.
TED英语演讲稿
e ice cream.
See, us kids are going to ansatically be happy and healthy.
es doe from Dr. Roger e of those parents like mine counted it as one of the reasons they felt confident to pull their kids from traditional school to try something different. I realized Im part of this small, but groputer hacker, he hacked skiing. His creativity and inventions made skiing munity, and through a net around the nation, and that sparked my love of e basic physics concepts like kinetic energy through experimenting and making mistakes.
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