A dead satellite can become a high-speed hazard in an orbit that is already packed with working spacecraft. That risk is why ...

Researchers are developing a real-life tractor beam, with the goal of pulling defunct satellites out of geostationary orbit ...

This remarkable miniature rotorcraft is so lightweight and efficient that it can lift its own mass given nothing but sunlight. The entire thing weighs about as much as four paperclips, and it can fly ...

Electrostatic motors are now common in MEMS applications, but researchers at the University of Wisconsin and spinoff C-Motive Technologies have brought macroscale electrostatic motors back. [via ...

If you have an interest in audio there are plenty of opportunities for home construction of hi-fi equipment. You can make yourself an amplifier which will be as good as any available commercially, and ...

What if the very principles that have powered industry for over a century were suddenly turned on their head? For decades, electromagnetic motors—reliant on copper windings and rare earth magnets—have ...

We take a look at the history of the electrostatic loudspeaker and some of the designs that made it prized by audiophiles. Electrostatic loudspeakers have been part of my audiophile experience from ...