Engineering

Military researchers see non-lethal role for talking lasers

Say what? Laser plasma balls that can talk? The Pentagon? How, and for what? The answer is that instead of beaming a flashing light or shouting over a loudspeaker to keep people away from sensitive areas, new technology is ...

Security

When smartphone finger taps can lead to side channel attack

You type, hacker deciphers, your password is doomed. That is the grim scenario being discussed in a paper that is now on arXiv. "Hearing your touch: A new acoustic side channel on smartphones," is by authors Ilia Shumailov, ...

Engineering

Miniaturised pipe organ could aid medical imaging

A miniaturised version of a musical instrument that could be used to improve the quality of medical images has been manufactured by researchers at the University of Strathclyde.

Engineering

3-D printed active metamaterials for sound and vibration control

Researchers have been pushing the capabilities of materials by carefully designing precise structures that exhibit abnormal properties that can control acoustic or optical waves. However, these metamaterials are constructed ...

Security

The next cyberattack could come from sound waves

You might think your smartphone or laptop is relatively safe from cyber attacks thanks to anti-virus and encryption software. But your devices are increasingly at risk from "side-channel" attacks, where an intruder can bypass ...

Consumer & Gadgets

Authentication may be all in your head through SkullConduct

(Tech Xplore)—There are things that are unique about you—and researchers are eager to turn those things into identification tools. They are even listening to the unique sound of the person's skull. To be sure, researchers ...

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Longitudinal wave

Longitudinal waves are waves that have same direction of oscillations or vibrations along or parallel to their direction of travel, which means that the oscillations of the medium (particle) is in the same direction or opposite direction as the motion of the wave. Mechanical longitudinal waves have been also referred to as compressional waves or compression waves.

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