Drones can determine the shape of a room by listening

Imagine a loudspeaker is placed in a room with a few microphones. When the loudspeaker emits a sound impulse, the microphones receive several delayed responses as the sound reverberates from each wall in the room. These first-order ...

News Corp shows third quarter profit

Rupert Murdoch's mass media and publishing company News Corp posted a third quarter net profit of $23 million Thursday, boosted by its HarperCollins book division.

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