"We could look for beacons." "It could be that there are alien civilizations that have simply created something a little bit like a lighthouse that sweeps the plane of the galaxy, goes bleep, and it's there to attract attention, or it's a monument, or an aesthetic symbol or even a religious symbol.

VOA: standard.2010.04.16

You see a bleep going across the screen to indicate that they've got their finger on the pulse of what's happening, or you see it in TV shows like ER.

你们看到一个亮点在屏幕上来回跳动,来显示病人脉搏的,跳动情况,就像在急诊室的故事,这类电视中看到的那样

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