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AMERICAN MOSAIC - In Corning New York: A House of Glass By Nancy Steinbach, Nana Demange and Shelley Gollust Broadcast: Friday, September 16, 2005 (THEME) HOST: Welcome to AMERICAN MOSAIC, in VOA Spec
American Mosaic
Privacy Concerns Raised About Google Glass Google Glass提出要关注隐私保护 洛杉矶谷歌的最新的高科技设备 Google Glass 因为隐私保护问题一直备受争议. When Professor Marcia Dawkins first heard about Google Glass, she h
VOA标准英语2013年(七月)
For centuries, Prague has been a center of art, and home to great composers. Dvorak, Chopin and Tchaikovsky performed their best works here. Inspired by this musical heritage is Alexander Zoltan, who plays a less traditional instrument - the glass ha
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pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con
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At 2 a. m, Mrs. Culkin was convinced that she had heard a prowler in the living, room. Tiptoe down-stairs, she told her husband. Don' t turn on the lights. Sneak up him before he knows what's happeningDutifully Mr. Culkin put on his robe. Just as he
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a
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