Automotive

Adding sound to electric vehicles improves pedestrian safety

While they decrease sound pollution, electric vehicles are so quiet, they can create a safety concern, particularly to the visually impaired. To address this, many governments have mandated artificial sounds be added to electric ...

Engineering

A screw that can halve the level of perceived sound

Could noisy neighbors become a thing of the past? If you are disturbed by crashes, bangs, and muffled voices from next door, then you are not alone, but a Malmö University researcher thinks the answer is as simple as a screw.

Engineering

Scientists use smartphone gyroscopes to sync time across devices

Skoltech researchers have designed a software-based algorithm for synchronizing time across smartphones that can be used in practical tasks requiring simultaneous measurements. This algorithm can essentially help turn several ...

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Sound

Sound is a travelling wave which is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.

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