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British English 2022-05-07    
Obesity May Threaten Life Expectancy

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Health and longevity. Long live the fat American. Obesity may threaten life expectancy. Or maybe not. AMERICA’S obesity epidemic is so called for a reason. Roughly one in three adults is obese. ...


Pre-Intermediate 2022-05-07    
The Dry Tortugas National Park

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It is the last few days of July in eighteen sixty five.The United States Navy steamship "Florida" moves slowly toward a small island.Members of the crew tie the ship to the dock.Passengers begin to le...


Intermediate 2022-05-06    
Do Dietary Guidelines Actually Contribute to Obesity

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Steve: Dr. Marantz, good to talk to you today. Marantz: Hi, Steve. Steve: Very interesting paper you have here, "A Call for Higher Standards of Evidence for Dietary Guidelines." Let's cut right ...


Video 2022-05-06    
Learning from Mice - The Science of Transgenic Technology

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What do humans, flies, and worms have in common? More than you might think. In fact, even scientists have been amazed to find that the genes that control early development in fruit fli...


Pre-Intermediate 2022-05-05    
Diabetes in Children

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A young girl reaches for a drink. She has had a long day. She opens a can of Coca Cola. She pours the cool black liquid down her throat. Mmmm - the real thing! The bright world of advertising! It s...


British English 2022-05-05    
IBM's Centenary

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IBM's centenary. The test of time. Which of today’s technology giants might still be standing tall a century after their founding? IT IS not, by any means, the world’s oldest company. There are J...


Intermediate 2022-05-04    
Science & America's Future

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Rosner: The issue really is from my perspective whether or not there is in fact in a connection between consistently supported research, especially basic research, at national prosperity the extent of...


Video 2022-05-04    
Building Blocks of DNA

Keywords:

A, C, G, and T. Adenine, cytosine, guanine, and thymine. These are the four chemical building blocks of the DNA molecule. They are components of nucleic acid, which gives DNA its ton...


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