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美国911博物馆 Eleven years after the September 11 terror attacks leveled the World Trade Center, work on a museum at the site, which was to open on the anniversary this year, has stopped - because of financial and power disputes. At the same tim
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest
One day Mel Martin stopped by the chambers of a judge with whom he had lunch appointment. As his friend changed from robe jacket, Martin noticed a shiny black pistol bolstered to the judge's shoulder.
Truth lies at the bottom of a well. 真理不在表面,而蕴藏在深处。 Disappointment is the nurse of wisdom. 挫折是智慧的保姆。 What is learned in the cradle is carried to the grave.
One day Mel Martin stopped by the chambers of a judge with whom he had lunch appointment. As his friend changed from robe jacket, Martin noticed a shiny black pistol bolstered to the judge's shoulder. The judge was not a firearms enthusiast, so Marti
At age 89, Mary Fasano graduated with a bachelor s degree from the Extension School last week and entered the history books as the oldest person to earn an undergraduate degree at Harvard. Following is the speech she delivered -- The Power of Knowled