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Current issue

ELEKTRO 1/2019 was released on January 16th 2019. Its digital version will be available on February 12th 2019.

Topic: Electrotechnology; Materials for electrical engineering; Wiring material

Main Article
Electrically conductive adhesives for electrical engineering
Smart Cities (part 6)

SVĚTLO (Light) 6/2018 was released on December 3rd 2018. Its digital version will be available on January 4th 2019.

Luminaires and light apparatuses
Modular floodlights Siteco
Decorative luminaire PRESBETON H-E-X from the integral series town equipment
LED luminaires ESALITE – revolution in sphere of industrial lighting

Daylight
About median illumination by daylight
Professional colloquium Daylight in practice

These shoes generate power with every step you take

20.01.2015 | |

Smartphones and wearable computers have become incredibly popular in recent years, but batteries can’t always keep pace with our ever-increasing demand for power. These personal electronics can just about do it all, but after a few hours of heavy usage, it’s time to recharge. Can we ever move past our addiction to the wall socket? Researchers in Germany have designed a tiny system embedded in a pair of shoes that effectively harvests the energy expended by the simple act of walking. With this system, you can actually power your own electronics as you walk around.

In the journal Smart Materials and Structures, Klevis Ylli and his team outline how they were able to use two different types of harvesters to capture significant amounts of energy from the swing of the foot and the strike of the heel. The first harvester accelerates magnets through a set of coils when the foot swings, and the second uses frequency up-conversion to trigger a spring-loaded magnetic circuit into resonance when the heel strikes the ground.

read more...www.extremetech.com

Image credit: Youtube.com

 

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