单词：reflex reflector
单词：reflex reflector 相关文章
In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40
Scientific American(四)月
This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? February 28th is International Sword Swallowers Awareness Day, according to practitioner Dan Meyer, who recently demonstrated the technique at the AAAS meeting in Chic
Scientific American(二)月
What Are Reflexes? If youve ever blinked at a sudden light, jerked your hand away from something hot, or jumped at a loud noise, then you know that these are not actions we consciously plan. Rather, they happen involuntarily. Such sudden, unconscious
英语听力文摘 English Digest
据《科学》杂志报道，苏联的月球车40年前在月球表面留下了激光反射器，虽然经过多年的搜寻科学家始终没有发现激光反射器的踪迹。 4月22日，一组物理学家终于发现了来自反射器的微弱闪
60秒科学
Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar
电信英语
The gas stings Iris, and suddenly, she can't help it, she starts weeping uncontrollably. 这种气体刺激着虹膜，来势汹汹，她无力阻止，于是她开始控制不住地大哭。 These reflex tears are different from the basal tears that
TED演讲教育篇
The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e
2016CRI中国国际广播电台
Bart's upstairs neighbor was driving him nuts. He made all kinds of strange noises at all kinds of strange hours. If I tell my neighbor he's noisy, he won't believe me, Bart thought. He'll believe me only if he lives downstairs and hears himself upst
英文短篇故事（纽约）
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
Sleep On, Sneeze Not 睡觉的时候不会打喷嚏 The signs are unmistakabl e : the eyes water, the chest heave s , the nose twitch es , the body tenses, suspense builds until finally a sneeze blasts forth, concluding the drama. It's a momentarily
英语听力文摘 English Digest
A new flexible smartphone design could change the way users interact with their devices. ReFlex, developed by researchers at Queen's University, uses 'bend sensors' to control app interactions, and simulates physical forces through detailed vibration
英语新闻
After having spent a fast year Waiting for the next time I can get you close I grew used to being back here Like a chorus synth line soldier at his post You call and I respond The sparrow and the song I miss you when you're gone When I am alone I See
音乐咖啡厅
The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for
2016CRI中国国际广播电台
The signs are unmistakable: the eyes water, the chest heaves, the nose twitches, the body tenses, suspense builds... until finally a sneeze blasts forth, concluding the drama. It's a momentarily paralyzing experience that can seize one at almost any
英语时差8，16
Pre-Listening Vocabulary involuntary: occurs without ones control (e.g. a reflex) contagious: spreads from one person to another empathy: the understanding or acknowledgment of another persons feelings phenomenon: an observance in nature (often causi
趣谈英语