We all know how regular fire extinguishers can put out a fire. But there are other ways to fight fire. George Mason University Engineering students Viet Tran and Seth Robertson have invented a new fire extinguisher that relies on low-frequency sound waves to get the job done.
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The device is free of toxic chemicals and can be mounted on drones to improve safety for firefighters. The prototype weighs about 20-lb. What do you think? Are you impressed?
[Source: GMU]
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