SSS 2008-02-08
时间：2019-01-08 作者：英语课 分类：Scientific American(二)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.
Last month the journal Science reported that a Swedish company was planning on using the body heat generated by commuters in a Stockholm train station to warm a nearby office building. If that sounds too personal they’re not the only one thinking about ways to reuse wasted energy. A team of scientists from Ann Arbor 1, Pittsburgh and British Columbia have come up with the way to tap pedestrian power. They've created a device which straps 2 onto your knees that can harvest energy from your stride the same way hybrid-electric vehicles recycle power during braking . Their report which appears in the February 8 issue of Science shows that walkers can generate about five watts 3 of power without so much as breaking a sweat. That's enough energy to run ten cellphones or two computers at once, which could be good news for people who live in countries where access to electricity is spotty. The bad news is the device could enable commuters to talk on the phone, listen to music, email their friends, play video games, check their stock codes and photograph themselves doing it just by pacing back and forth 4 waiting for their morning latte. We beseech 5 them not to on bended knee.
Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.
- They sat in the arbor and chatted over tea.他们坐在凉亭里，边喝茶边聊天。
- You may have heard of Arbor Day at school.你可能在学校里听过植树节。
- the shoulder straps of her dress 她连衣裙上的肩带
- The straps can be adjusted to suit the wearer. 这些背带可进行调整以适合使用者。
- My lamp uses 60 watts; my toaster uses 600 watts. 我的灯用60瓦，我的烤面包器用600瓦。
- My lamp uses 40 watts. 我的灯40瓦。
- The wind moved the trees gently back and forth.风吹得树轻轻地来回摇晃。
- He gave forth a series of works in rapid succession.他很快连续发表了一系列的作品。