科学美国人60秒 SSS 2013-10-17
时间：2018-12-24 作者：英语课 分类：Scientific American(十)月
英语课
This is Scientific American's Sixty Seconds Science. I am K.H., this will just take a minute.
Thanks to WiFi, we can watch movies, play games and check email from the comfort of the couch. And soon we may be able to repurpose our WiFi signal so we can turn on the coffee maker 1 or turn off the TV with a simple flick 2 of a finger from anywhere in the house. Researcher described their perspective system called the YC at the international conference on mobile computing 3 and networking. The idea is similar in the concept to the Xbox connect which uses cameras to recognize a game player's movements and translate them into an action on screen . But YC works without cameras. Instead it uses the ambient wireless 4 signals put out by our smart phones, laptops, routers and tablets. When we move, we altered the patterns of these WiFi signals. The YC receiver detects those disturbances 5 and interprets the motion that cause them. Like waving or swinging your wrists. Of 900 gestures tested YC could identify 94%. The user signs are particular motion to a specific gadget 6. The motion doesn't have to be the one that works in the real world. So if all goes well, you may actually be able to punch your lights out.
Thanks for the minute for Scientific American's Sixty Seconds Science. I am K.H..
1 maker
n.制造者，制造商
- He is a trouble maker，You must be distant with him.他是个捣蛋鬼，你不要跟他在一起。
- A cabinet maker must be a master craftsman.家具木工必须是技艺高超的手艺人。
2 flick
n.快速的轻打，轻打声，弹开；v.轻弹，轻轻拂去，忽然摇动
- He gave a flick of the whip.他轻抽一下鞭子。
- By a flick of his whip,he drove the fly from the horse's head.他用鞭子轻抽了一下，将马头上的苍蝇驱走。
3 computing
n.计算
- to work in computing 从事信息处理
- Back in the dark ages of computing, in about 1980, they started a software company. 早在计算机尚未普及的时代（约1980年），他们就创办了软件公司。
4 wireless
adj.无线的；n.无线电
- There are a lot of wireless links in a radio.收音机里有许多无线电线路。
- Wireless messages tell us that the ship was sinking.无线电报告知我们那艘船正在下沉。
5 disturbances
n.骚乱( disturbance的名词复数 )；打扰；困扰；障碍
- The government has set up a commission of inquiry into the disturbances at the prison. 政府成立了一个委员会来调查监狱骚乱事件。
- Extra police were called in to quell the disturbances. 已调集了增援警力来平定骚乱。