科学美国人60秒 SSS 2014-08-20
时间：2018-12-24 作者：英语课 分类：2014年Scientific American(八)月
英语课
Do you like working up a sweat? Or do you feel like maybe sweat should work for you? Well, hold on to your sudoriferous glands 1. Because researchers have designed a device that could someday produce power from your perspiration 2. The schvitzy scheme was presented at the annual meeting of the American Chemical Society in San Francisco.
Strenuous 3 exercise generates lactate—the molecule 4 that makes overworked muscles burn. Athletes sometimes evaluate their fitness by checking the lactate levels in their blood. To reduce blood draws, researchers came up with a monitor that could measure the lactate in sweat. The device they designed strips electrons from lactate, which creates a small electric current. The strength of the current reveals the amount of lactate.
To test the system, 10 volunteers wore the arm-patch sensor 5 while they rode a stationary 6 bike. And the device recorded the current they delivered as they dripped.
Then the researchers thought, what if they could tap into this energy to develop a sort of sweat-powered “bio battery?” Their proof-of-concept setup topped out at only about 4 microWatts of juice—not even enough to run a watch. But with better electronics, exercising in the future could make dirty clothes and some clean energy.
—Karen Hopkin
2 perspiration
n.汗水；出汗
- It is so hot that my clothes are wet with perspiration.天太热了，我的衣服被汗水湿透了。
- The perspiration was running down my back.汗从我背上淌下来。
3 strenuous
adj.奋发的，使劲的；紧张的；热烈的，狂热的
- He made strenuous efforts to improve his reading. 他奋发努力提高阅读能力。
- You may run yourself down in this strenuous week.你可能会在这紧张的一周透支掉自己。
4 molecule
n.分子，克分子
- A molecule of water is made up of two atoms of hygrogen and one atom of oxygen.一个水分子是由P妈̬f婘̬ 妈̬成的。
- This gives us the structural formula of the molecule.这种方式给出了分子的结构式。
5 sensor
n.传感器，探测设备，感觉器（官）
- The temperature sensor is enclosed in a protective well.温度传感器密封在保护套管中。
- He plugged the sensor into a outlet.他把传感器插进电源插座。
6 stationary
adj.固定的，静止不动的
- A stationary object is easy to be aimed at.一个静止不动的物体是容易瞄准的。
- Wait until the bus is stationary before you get off.你要等公共汽车停稳了再下车。