The nightmare of your mobile phone running out of power mid-conversation could be over, for researchers at the University of Wisconsin have invented a device that, placed in a shoe, can harvest the kinetic energy from walking to power a mobile phone.

通話時遭遇手機突然沒電的經歷或許就要成為歷史。因為美國威斯康星大學的研究人員研發了一種可以嵌入鞋子的裝置，可從行走中獲取動能從而為手機充電。

Scientists have been working for years on trying to harness the energy produced from walking, which theoretically is sufficient to power a light bulb, smart phone or even a laptop.

為了利用人們在走路過程中所產生的能量，科學家們已經探索了好多年。理論上講，這種能量足以滿足燈泡、智能手機甚至是一部筆記本電腦的工作需要。

But until now their solutions have been too cumbersome, or have not produced enough power to be useful.

但是直到現在，他們的方案都太過繁瑣，或者難以產生足夠的可以使用的能量。

Now, engineering experts Tom Krupenkin and Ashley Taylor say they have come up with a technology which can produce as much as a hefty 10 watts of power.

如今，工程專家湯姆•克魯本勤和艾希莉•泰勒表示，他們已經研發了一項技術，可以產生高達10瓦的能量。

來源:可可英語 http://www.ccdyzl.cn/cet6/201108/151382.shtml