This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on f

发表于:2018-12-24 / 阅读(47) / 评论(0) 分类 Scientific American(八)月

Can she change how you behave? Dogs that can retrieve cash from ATMs and empty washing machines help disabled people lead more independent lives, but can they also help change disruptive teenagers' behaviour? A unique TV experiment, Dog House, follo

发表于:2019-01-02 / 阅读(37) / 评论(0) 分类 Take Away English

Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on fewer watts. But even if we replaced all today's bulbs with energy-sipping LEDs, the world m

发表于:2019-01-02 / 阅读(78) / 评论(0) 分类 60秒科学

The Dogs and the Fox Some dogs found the skin of a lion and began to tear it to pieces with their teeth.A fox,seeing them,said,If this lion were alive,you would soon find out that his claws were stronger than your teeth. It is easy to kic

发表于:2019-01-09 / 阅读(57) / 评论(0) 分类 趣味英语

Science and Technolgy. 科技。 Visible-light communication. 可见光通信。 Tripping the light fantastic. 与光共舞。 A fast and cheap optical version of Wi-Fi is coming. 一个高速而廉价的光学Wi-Fi即将问世。 AMONG the many new

发表于:2019-01-26 / 阅读(60) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 Visible-light communication 可见光通信 Tripping the light fantastic 与光共舞 A fast and cheap optical version of Wi-Fi is coming 一个高速而廉价的光学Wi-Fi即将问世 AMONG the many new gadgets u

发表于:2019-02-06 / 阅读(65) / 评论(0) 分类 经济学人科技系列