Next time, he hopes to receive word earlier on, as soon as Chesley or another astronomer predicts the impact location, so that he can catch a flight to the place where debris is expected to fall.

下一次，他希望能早点得到消息，一旦切斯利或其他天文学家预测出爆炸地点坐标，他就可以火速飞到残骸陨落的地方。

youdao

"An attack on a public location, but particularly one that people use in their everyday lives, has a very strong psychological impact and it also tends to generate a lot of media coverage."

VOA: standard.2010.04.01

One LED serves as a battery level indicator, one flashes yellow after moderate impacts and a third flashes red for severe blows. mc10 wasn't willing to share the exact hardware inside, but we know that it's got a rechargeable battery and has rotational acceleration, multi-directional acceleration, impact location and impact duration.

ENGADGET

Social media sites like Twitter are being monitored for real-time, location-specific impact to individuals and communities to deliver situational intelligence to emergency response teams as quickly as possible.

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Using the footage and the location of an impact into Lake Chebarkul, Jorge Zuluaga and Ignacio Ferrin, from the University of Antioquia in Medellin were able to use simple trigonometry to calculate the height, speed and position of the rock as it fell to Earth.

BBC: Russia meteor's origin tracked down