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Technology@lemmy.worldEnglish · 1 年前

Hearing is be-leafing: Students invent quieter leaf blower

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Hearing is be-leafing: Students invent quieter leaf blower

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Technology@lemmy.worldEnglish · 1 年前

Patent-pending design by Hopkins undergrads could be available in stores within two years

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Baphomet_The_Blasphemer@lemmy.world
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1 年前
Most gas-powered leaf blowers use two-cycle engines, which produce hundreds of times more hazardous pollutants and fine particulates than cars. Leaf blowers overtook automobiles as the number one source of air pollution in California during 2020.

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