A Cool Sunburn A listener from Ontario, California wrote to A Moment of Science with a question her sons had asked her. The boys wondered why is it that when you get sunburned you often feel chilled. It really does seem like a contradiction: youve be

发表于:2018-12-31 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest

The Cleaning Power of Soft Drinks! 饮料的神奇清洁能力 Lets begin with a cleaning tip: If you have some tarnished or corroded brass that you want to clean, an old brass candlestick for example, you can use Coca-Cola, or any other cola soft dr

发表于:2019-02-24 / 阅读(64) / 评论(0) 分类 英语听力文摘 English Digest

Dehydration 脱水 If I were to stop drinking water right now, how long could I live? There are different factors involve d here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person could di

发表于:2019-02-24 / 阅读(93) / 评论(0) 分类 英语听力文摘 English Digest

Early-morning Shivers 清晨为何冷得发抖? 自然界、生物界都有它本身的特有的严谨的节律。人体的生物节律与自然节律相适应,人类才得以生存下来。地球上亿万年的昼来夜往,永不停息。人体的

发表于:2019-02-24 / 阅读(67) / 评论(0) 分类 英语听力文摘 English Digest