This is Scientific Americans 60-Second Science. Im Christopher Intagliata. Got a minute？ The North American and Pacific plates meet in California at the San Andreas fault. The plates grind past each other there at as much as an inch-and-a-half a ye...
This is Scientific American's 60-second Science. I'm Cynthia Graber, this will just take a minute. Americans have gained a lot of weight in the past few decades. Is it our sedentary lifestyle? The increase in processed foods and sweeteners? Supersize...
Helen: Hello, welcome to BBC Learning English. Im Helen. Feifei: 大家好，我是冯菲菲。今天我们的话题和吃有关。 Helen: Food! My favourite subject and today were talking about one of thebest loved food in this country, chips. Inser...
