Fiftyyears ago this Sunday, Theodore Maiman and his fellow scientists atHughes Research Laboratory shined a high-power flash lamp on a rubyrod, triggering a beam of coherent light: the first laser.

50年前的这个星期天，休斯研究实验室的西奥多.梅曼和科学家用高功率闪光灯照射红宝石棒，引发光束相干： 第一台激光器 。

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A gene linked to increased life span through calorie restriction also appears to play a critical role in boosting memory and brain power, according to a study published Sunday.

周日发布的一项研究表明：一个通过热量限制来增长寿命的基因似乎还对促进记忆和智力有关键作用。

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An explosion rocked a natural-gas power plant Sunday in Middletown, Conn., sending earthquake-like shock waves miles away.

康涅狄格州米德尔敦一家天然气发电厂发生爆炸，形成如同地震一般的冲击波，影响达数英里。

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On Sunday, the United States overpowered China, coming on a power play against the U.S.team's back-up goaltender in the final three minutes.

VOA: standard.2010.02.15

Appearing on the Fox News Sunday television program, former Foreign Minister Abdullah Abdullah also rejected the possibility of a power-sharing agreement between himself and Mr.Karzai.

VOA: standard.2009.10.25

About 2, 500 customers were without power Sunday morning, down from the 55, 000 Saturday night, emergency management officials said.

CNN: At least 4 perish in fire in flooded Philadelphia

"There was a phenomenal amount of trees that went down, " Cantwell said, noting that 100% of Scituate residents had no power Sunday morning and estimating it may be Thursday before all the lights are back on.

CNN: February 11, 2013 -- Updated 1005 GMT (1805 HKT)

His teammates helped him by killing all seven of the Islanders' power plays Sunday.

WSJ: Even the Devils' Backup Is a Wall