評論
打印
Suppose one day scientists pick up a transmission they think is generated by aliens.
假設有一天，科學家收到外星人發來的信號。
Now what? Do we build a landing strip and break out the welcome wagon?
我們該怎么辦？我們要不要建一個飛碟著陸跑道，用迎賓車歡迎它們?
Well here's the thing about picking up alien broadcasts.
關于接收到外來廣播的原委是這樣的。
The receivers scientists are currently using to listen to space noise are designed to find constant signals, or signals that are pulsing at regular intervals.
科學家們目前使用的空間噪聲接收器被設計用來尋找恒定的信號，或者那些間隔有規律的脈沖信號。
But any message carried by these signals would probably be lost because the receivers can't pick up the modulation, or rapid variations, in the base signal.
但是這些信號所攜帶的任何信息都有可能丟失，因為接收器在信號基地無法收集到變調或快速變化的信號。
The SETI institute, which searches for extra terrestrial life, has compared picking up a signal's modulation to picking up the sound of a flute when it's masked by the noise of a waterfall.
專門尋找外星生命的SETI研究院將接收到信號的變調和被瀑布聲掩蓋的笛聲進行了比較。
譯文為可可英語翻譯，未經授權請勿轉載!
