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托福听力练习-科学美国人60秒:电影电视

2017-04-26 10:59:00来源：科学美国人60秒

点击查看>>科学美国人60秒音频：电影电视

　　科学美国人60秒听力练习：电影电视

　　科学美国人60秒英文文本

　　How many times has it happened to you: you’re sitting around watching a rerun of Friends and you think: Man, if only I could catch a whiff of that hazelnut mocchaccino they’re all pretending to drink. Well, me neither.

　　But engineers have now developed a programmable, odor-emitting device that, like it or not, brings us one step closer to realizing the dream of smell-a-vision. Their design is described in the journal Angewandte Chemie. [Hyunsu Kim et al, An X–Y Addressable Matrix Odor-Releasing System Using an On–Off Switchable Device]

　　TV tickles us with sight and sound. Why not smells? All you’d need is a box that would sit near the set and generate fragrances that match the images on screen: a woman’s perfume or a hot apple pie. But how big would the device have to be to generate thousands of odors?

　　To keep the dimensions down, the scientists envision using a 100-by-100 grid, so that just 200 on/off switches could unleash 10,000 stored bouquets. Which they say makes the whole thing “quite doable.”

　　The question then becomes: why would anyone want to do it? Presumably there are some things that are best left unsmelled. Because a sound cue is perfectly sufficient to tell us where Archie Bunker or Al Bundy has just been.

　　—Karen Hopkin

　　中文翻译请点击下一页

本文关键字: 托福听力 科学美国人60秒

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