SSS 2011-06-17
时间：2019-01-08 作者：英语课 分类：Scientific American(六)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.
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.
TV tickles 1 us with sight and sound. Why not smells? All you'd need is a box that would sit near the set and generate fragrances 2 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 3, so that just 200 on/off switches could unleash 4 10,000 stored bouquets 5. 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 6 sufficient to tell us where Archie Bunker or Al Bundy has just been.
Thanks for the minute. For Scientific American's 60-Second Science, I'm Karen Hopkin.
- My foot [nose] tickles. 我的脚[鼻子]痒。
- My nose tickles from the dust and I want to scratch it. 我的鼻子受灰尘的刺激发痒，很想搔它。
- The bath oil comes in various fragrances. 这种沐浴油有不同的香味。
- This toilet soap lathers so nicely and has several fragrances. 这种香皂起泡很多，并且有好几种香味。 来自《现代汉英综合大词典》
- In this application,the carrier is used to encapsulate the grid.在这种情况下，要用载体把格栅密封起来。
- Modern gauges consist of metal foil in the form of a grid.现代应变仪则由网格形式的金属片组成。
- They hope to create allies to unleash against diseases,pests,and invasive species.他们希望创造出一些新群体来对付疾病、害虫和一些有侵害性的物种。
- Changing water levels now at times unleash a miasma of disease from exposed sewage.如今，大坝不时地改变水位，从暴露的污水释放出了疾病瘴气。
- The welcoming crowd waved their bouquets. 欢迎的群众摇动着花束。 来自《现代汉英综合大词典》
- As the hero stepped off the platform, he was surrounded by several children with bouquets. 当英雄走下讲台时，已被几名手持花束的儿童围住了。 来自《简明英汉词典》