Energy & Green Tech

In Iceland, CO2 sucked from the air is turned to rock

At the foot of an Icelandic volcano, a newly-opened plant is sucking carbon dioxide from the air and turning it to rock, locking away the main culprit behind global warming.

Computer Sciences

Light bulb vibrations yield eavesdropping data

In an era of digital eavesdropping where hackers employ a variety of means to take over built-in video cameras, peruse personal digital data and snoop on cellular conversations, researchers have finally seen the light.

Consumer & Gadgets

Body-monitoring tech trend comes with concerns

A ring shimmers on display at the Consumer Electronics Show, but this is no mere piece of jewelry—it's packed with sensors capable of detecting body temperature, respiration and much more.

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Pressure

Pressure (symbol: p or P) is the force per unit area applied in a direction perpendicular to the surface of an object. Gauge pressure is the pressure relative to the local atmospheric or ambient pressure.

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