字神帝國英語天地

今天這篇會覺得汗水沒白流啊~~
今日主題：Bio-Battery Produces Power from Your Perspiration
生物電池可以從你的汗水中獲得能量

洪欣老師推薦：托福聽力最好的課外教材：60-Second Science
康康精選托福會考的主題，堅持每天精聽一定會進步的哦!!

建議方法：
1. 先聽兩三遍 (不看文稿)
2. 再一句一句聽寫 (每句都要聽寫數遍，直到寫出85%以上的字)
3. 最後check文稿，看哪聽不出來，單字沒背過，還是發音不熟。
4. 堅持天天聽，就能每天進步哦。

MP3音檔 (按右鍵可下載聽)：喜歡的同學，幫忙推或按讚哦~~
http://online1.tingclass.net/voaspe/…/20140829sa_science.mp3

只有音檔怎夠，聽不懂地方，不用怕，康康幫你準備好中英文稿了：

中英文稿：
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. Because researchers have designed a device that could someday produce power from your perspiration. The schvitzy scheme was presented at the annual meeting of the American Chemical Society in San Francisco. [Wenzhao Jia et al, Epidermal Biofuel Cells: Energy Harvesting from Human Perspiration, in Angewandte Chemie]
你喜歡鍛鍊嗎?或者你想過可能你的汗水能為你服務嗎?嗯，你可要控制好你的汗腺了，因為研究人員已經設計出一個能夠利用你的汗水來發電的設備。該schvitzy計畫在舊金山的美國化學學會的年會上被提出。

Strenuous exercise generates lactate—the molecule that makes overworked muscles burn. Athletes sometimes evaluate their fitness by checking the lactate levels in their blood.
劇烈運動所產生的乳酸鹽可以使過度勞累的肌肉燃燒，有時通過檢查運動員血液中乳酸的含量來評估他們的健康狀況。

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.
為了減少抽血檢測的次數，研究人員發明了一個可以檢測乳酸濃度的監測器，他們所設計的這個監測器可以使電子脫離乳酸，從而產生一小股電流。電流的強弱代表了乳酸含量的多少。

To test the system, 10 volunteers wore the arm-patch sensor while they rode a stationary bike. And the device recorded the current they delivered as they dripped.
為了測試這一系統，10名志願者在騎著固定單車時，都戴著臂貼傳感器。那樣在他們流汗時，該設備便會記下目前的電流強度。

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
後來研究人員想到，假如可以利用這種能量來創造一種汗水發電生物電池，將會怎樣呢?雖然他們的概念驗證裝置只產生了4微瓦電，這還不足以使一隻手錶正常運轉。但隨著電子學的不斷發展，將來運動中所產生的汗液或許可以清洗衣服和創造一些清潔能源。——凱倫‧霍普金