一句話新聞 始回顧

英國：科學家發明“不粘口香糖”

Scientists have developed a non-stick chewing gum that can be easily removed from pavements， shoes and clothes. In two street trials， leading commercial gums remained stuck to the pavement three out or four times， while non-stick chewing gum came away naturally in all cases， Revolymer said. 科學家們研發出一種“不粘口香糖”，這種新型口香糖很容易從街道、鞋子和衣服上清除。據Revolymer公司介紹，兩次街道測試的結果發現，現在市面上3/4的口香糖都會粘在街道上， 而“不粘口香糖”在任何情況下都能自然脫落。

想永葆青春？去曬太陽吧！

A healthy dose of sunshine may be the secret to staying young， British scientists have revealed. Vitamin D is produced naturally by the skin in response to sunlight and may help to slow the ageing process and protect against heart disease， according to the study. 英國科學家日前公布，長期堅持曬太陽可能是永葆青春的秘訣。該研究稱，皮膚受到陽光照射后而自然產生的維他命D有助于延緩衰老，預防心臟疾病。

熱帶小魚可無水存活數月

The Mangrove Rivulus， a type of small tropical killifish， seeks refuge in shallow pools of water in crab burrows， coconut shells or even old beer cans in the tropical mangrove swamps of Belize， the United States and Brazil. The fish can survive for up to 66 days out of water without eating， and their metabolism keeps functioning. 在美國和巴西的紅樹林沼澤中生活著一種生命力非常旺盛的小魚，它們在湖泊中沒有水的時候躲進被昆蟲侵蝕的樹洞中、椰子殼里、甚至是破啤酒罐里，通過皮膚吸收空氣中的氧氣。實驗顯示，它們在無水無食的情況下能夠存活66天。

法國天才72.4秒算出200位數的13次方根

French \"mathlete\" Alexis Lemaire showed off his rare mental agility， breaking the world record kept by himself after working out in his head the 13th root of a random 200-digit number in just 72.4 seconds. \"I use an artificial intelligence system which I use on my own brain instead of on a computer，\" he explained. 法國“數學天才”亞歷克西斯·勒麥爾展示了其罕見的心算本領，他以72.4秒心算出一個隨機抽取的200位數的13次方根，打破了由他本人保持的世界紀錄。他解釋說：“我是用一個人工智能系統計算出結果的，只不過我在大腦中運用這個系統，而不是在計算機中。”

◆編輯：丁俊玲