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Submission + - Vibrating helmet designed to guide firefighters through smoke (gizmag.com)

cylonlover writes: Firefighters can quite often find themselves in smoke-filled rooms, where it’s impossible to see more than a few inches in any direction. Not wanting those firefighters to run into walls, researchers at the University of Sheffield have created a prototype helmet equipped with a series of ultrasound sensors and vibrational pads that vibrates against the wearer’s forehead, letting them know the location of nearby obstacles.
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Vibrating helmet designed to guide firefighters through smoke

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It seems that more and more mathematicians are using a new, high level language named "research student".

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