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

Stars, Bulbs, and Light Pollution Our ancestors enjoyed a cleaner world.The water and air were cleaner, and when people went out at night, they could look at the stars above and ask questions about ou

发表于:2018-12-31 / 阅读(56) / 评论(0) 分类 有声英文阅读

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

Dear Malyce, You make me feel special, like I'm your one and only. You make me feel like I'm a star in the sky lighting up your life. You make me feel safe when I'm near you, wrapped up in your arms. You make me feel like an angel from heaven because

发表于:2019-02-04 / 阅读(38) / 评论(0) 分类 英语作文

Improving Productivity by Improving Lighting We all know that our surroundings affect our ability to get work done, from that irritating buzzing from the next cubicle over to the uncomfortable chair causing our back pain. But what about lighting? Has

发表于:2019-02-04 / 阅读(64) / 评论(0) 分类 阅读空间

Dear Malyce, You make me feel special, like I'm your one and only. You make me feel like I'm a star in the sky lighting up your life. You make me feel safe when I'm near you, wrapped up in your arms. You make me feel like an angel from heaven because

发表于:2019-02-13 / 阅读(25) / 评论(0) 分类 实用英语