224 Results


The TwingTec prototype T 28 measures three meters between the wings.
Products & Applications

Energy kites for green electricity

The energy revolution is here. You can feel it, or more accurately see it, in the air. Light “kites” on thin ropes can now convert wind energy to electrical energy. They might even come to replace traditional wind turbines. At least if we’re to believe the Swiss startup Twing Tec that recently ran a successful test on a pilot plant with energy kites. Let’s look closer into how this slightly unusual method for generating electricity works.

Read on


Printed circuit board is the most common name but may also be called "printed wiring boards" or "printed wiring cards".
Products & Applications

Back to basics: What's a printed circuit board?

Much of the technology we use daily would not be possible without the invention of the printed circuit board (PCB). Not only did the PCB make it possible to downsize electronic equipment, but they also made the manufacture of powerful circuitry more cost effective. Today, PCBs are found everywhere—and while their physical characteristics vary enormously, they still conform to a few basic design principles.

Read on
How did mercury-arc rectifiers change the world?
Research & Development

A short history of the mercury-arc rectifier

Invented in 1902, the mercury-arc rectifier made it possible to supply high-voltage di-rect current (HVDC) for major operations, such as powering radio transmitters and the New York subway network. Although mercury-arc rectifiers were gradually phased out in the 1970s, their legacy is proving extremely valuable for the renewable energy sec-tor.

Read on