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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
Big data is having an increasing effect on the way we live. Big data can be defined as information that is too big or complex to be contained or processed by any one machine or person. It can include which comments, photographs or stories you like on
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.
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
SAN FRANCISCO, April 22 (Xinhua) -- Apple and Google collect smartphone(智能手机) users' location information as part of their race to build massive databases, The Wall Street Journal reported on Friday after analyzing data and documents. Accordi