行波天线

VOA标准英语2010年-US Scientists Unlock Clues to Mystery

Researchers find circadian clock in Monarch's antenna plays a major role in navigation Shelley Schlender | Michoacn, Mexico 22 March 2010 Scientists believe antennas are critical to the navigation of the Monarch butterfly. Related Links Monarch Watch

发表于:2018-12-16 / 阅读(66) / 评论(0)

VOA标准英语2010年(三月)

简单慢速英语阅读:The Indoor Antenna

Brian didnt have cable TV. He didnt have satellite TV. He had an antenna for his TV. He had an indoor antenna. But it was an old antenna. The reception was bad. He needed to buy a new antenna. He went to Best Buy. The antennas were in boxes. He looke

发表于:2019-01-02 / 阅读(78) / 评论(0)

简单慢速英语阅读

原版英语小短文 25. The Indoor Antenna

Brian didn't have cable TV. He didn't have satellite TV. He had an antenna for his TV. He had an indoor antenna. But it was an old antenna. The reception was bad. He needed to buy a new antenna. He went to Best Buy. The antennas were in boxes. He loo

发表于:2019-01-02 / 阅读(64) / 评论(0)

原版英语小短文

科学美国人60秒 SSS How to Find Loooong Gravitational Waves

In 2016 the Laser Interferometer Gravitational-Wave Observatory, LIGO, made the first accepted detection of gravitational waves. So any time you move a mass it produces a gravitational waveso black holes, like the ones LIGO detected, these are stella

发表于:2019-01-20 / 阅读(39) / 评论(0)

2017年Scientific American(三)月

科学美国人60秒 SSS Giant Alien Antenna

(Probably Not a) Giant Alien Antenna强大的外星人光束 The Earth is studded with telescopes, listening for electromagnetic radiation from the great beyond. And a decade ago, astronomers stumbled upon a mysterious signal: a powerful pulse of rad

发表于:2019-01-20 / 阅读(70) / 评论(0)

2017年Scientific American(三)月

The Giants Secret

The Giants SecretLong ago there was a king who had a very brave son. One day the son told his father, Father, I am going to roam the world in search of adventures.The king did not want to grant his son permission to do so, but the prince insisted so

发表于:2019-02-08 / 阅读(59) / 评论(0)

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