含中文字幕节目   

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Gianna Jessen ran towards the finish line. She was struggling. Every part of her body hurt. But she was not going to give up. Her friend ran alongside her. He encouraged her to keep going. They had be...

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Addicted? Really? The internet: Mental-health specialists disagree over whether to classify compulsive online behaviour as addiction—and how to treat it. CRAIG SMALLWOOD, a disabled American war v...

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Hi Dr. Rusch. How are you today? Rusch: I'm doing quite well. How are you Steve? Steve: I'm fine, thanks. Good to talk to you. Tell us all about the Sorcerer II Global Ocean Sampling Expedition. Wha...

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This is a map of someone’s brain, showing roughly which areas respond when they hear different words. For example, there’s a small area in the middle frontal gyrus that reliably responds to hearin...

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Today we tell about a man known as Johnny Appleseed.Many people considered him a hero.(MUSIC)Johnny Appleseed was the name given to John Chapman.He planted large numbers of apple trees in what was the...

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Japan's disaster. A crisis of leadership, too. The many-headed catastrophe points to deeper-seated problems in governing Japan. SINCE the lives of hundreds of thousands of ordinary Japanese were ...

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Hi Dr. Heath! How are you today? Heath: I am very good. Thank you for having me. Steve: What is your key message today? Heath: We wrote a book called Made to Stick about how to get ideas across to ...

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The first method of sequencing the genetic code was devised by Fred Sanger. To sequence the DNA, it must first be separated into 2 strands. The strand to be sequenced is copied using chemically altere...