Related topics: iphone · physical activity

Speeding algorithms by shrinking data

In computer science, the buzzword of the day is "big data." The proliferation of cheap, Internet-connected sensors—such as the GPS receivers, accelerometers and cameras in smartphones—has meant an explosion of information ...

Two pairs of specs in one: Touch of finger changes prescription

If you're over 45 and wear glasses, you've probably got more than one pair. Or you're using bifocals or progressive lenses. As most people get older, their eyes have more trouble focusing on objects that are close, which ...

US army seeks new technology to replace GPS

The US army is working to limit its dependence on GPS by developing the next generation of navigation technology, including a tiny autonomous chip, the director of the Pentagon's research agency said Wednesday.

Smart sock for baby monitoring in funding campaign

(Phys.org) —Owlet Baby Monitors, a Salt Lake City business, is self-raising funds for its product, Owlet Vitals Monitor, a "smart" sock on the baby that can monitor vital signs and can send the information direct to a smartphone ...

A better way to measure acceleration

You're going at the speed limit down a two-lane road when a car barrels out of a driveway on your right. You slam on the brakes, and within a fraction of a second of the impact an airbag inflates, saving you from serious ...

New microtweezers may build tiny 'MEMS' structures

Researchers have created new "microtweezers" capable of manipulating objects to build tiny structures, print coatings to make advanced sensors, and grab and position live stem cell spheres for research.

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Accelerometer

An accelerometer measures the acceleration it experiences relative to freefall. Single- and multi-axis models are available to detect magnitude and direction of the acceleration as a vector quantity, and can be used to sense orientation, vibration and shock. Micromachined accelerometers are increasingly present in portable electronic devices and video game controllers.

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