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Alexa can listen for sounds, then respond any way you d like Here s the why and how of it

A recent update gives Alexa ears: You can set dog barking, baby crying, snoring or coughing as a routine trigger, then craft a routine for Alexa to follow.

Scientists may have detected hum of the universe for the first time

Scientists may have detected hum of the universe for the first time Some known noise sources could be ruled out to understand the sound but they needed more data to determine if it was indeed from gravitational waves. The sound was detected by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav). (Image for representation) Share Updated: Jan 18, 2021, 09:28 PM IST In an exciting news for space enthusiasts, scientists have detected what could be the resonant hum or the gravitational wave background of the Universe. This will be the first time that this hum would have been heard. According to the findings published in the Astrophysical Journal Letters, the sound was detected by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav).

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