单词：critical revolutional speed
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Education Report - A Social Network Aims to Speed Up Progress in Science This is the VOA Special English Education Report. A few years ago, a university researcher was having problems with an experiment that involved medical imaging. His adviser and
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This is the VOA Special English Health Report. Tuberculosis killed one million three hundred thousand people around the world in two thousand seven. In addition, almost half a million people who were infected with tuberculosis and with H.I.V. also d
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EXPLORATIONS - Will Physicists Have to Rewrite The Special Theory of Relativity? DOUG JOHNSON: Welcome to EXPLORATIONS, in VOA Special English. Im Doug Johnson. This week, we hear about developments in physics that, if proven correct, could have scie
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Game of Jai Alai Struggles to Attract US Fans Jai Alai is not child's play. The ball weighs about 150 grams and flies at high speed around a playing court, called a fronton. That speed is dangerous and it is what powers the sport. Long time player Jo
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Israel Critical of Iran Nuclear Talks U.N. and E.U. nuclear talks with Iran have settled on another round of negotiations next month in Baghdad. And Israel is not happy about it. Prime Minister Benjamin Netanyahu says more time is just what Iran want
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A person suffering from Alzheimer's gradually loses touch with reality. It is one of the most dreaded diseases of aging. When you think about the functions that limit living independently and autonomously, loss of cognition is one of the major ones,
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