#Electric current

Author: Al Williams / Source: Hackaday If you want to measure voltage you reach for a voltmeter. Current? An ammeter. Resistance? An ohmmeter. But what about measuring AC power? A watt meter? Usually. But if you know what to do, you could also reach for your oscilloscope. If you don’t know what

Author: Lewin Day / Source: Hackaday The common magnetic loudspeaker is, fundamentally, a fairly simple machine. A static magnetic field is generated by a permanent magnet, and a membrane is mechanically connected to a coil. When a varying electrical current is passed through the coil, this

Author: Robby Berman / Source: Big Think The application of electrical current can temporarily soften cartilage, allowing it to be manipulated before re-hardening. The technique promises to eliminate cutting, scarring, pain, and recovery time. So far it’s been tested on just one bunny who now

Author: Laurel Hamers / Source: Science News for Students Spiders don’t have wings, but that doesn’t mean they’re stuck on land. Carried on a parachute of silk strands, spiders have been known to drift kilometers above Earth’s surface. These so-called ballooning spiders may even soar across

Author: Philip Perry / Source: Big Think Consider this. It’s time to do that creative thing you do, be it music, art, writing, whatever. You strap on a cap and it stimulates your brain in such a way, as to ramp up your creative juices. According to researchers at Queen Mary and Goldsmith’s