Tangled telephone cords and electronic cables that come to resemble bird nests can frazzle even the most stoic person. Now researchers have unraveled the mystery behind how such knots form."
[Douglas Smith of the University of California, San Diego] and UCSD colleague Dorian Raymer ran a series of homespun experiments in which they dropped a string into a box and tumbled it for 10 seconds (one revolution per second). They repeated the string-dropping more than 3,000 times varying the length and stiffness of the string, box size and tumbling speed.
Digital photos and video of the tumbling strings revealed: Strings shorter than 1.5 feet (.46 meters) didn't form knots; the likelihood of knotting sharply increased as string length went from 1.5 feet to 5 feet (.46 meters to 1.5 meters); and beyond this length, knotting probability leveled off.
While there is no magical knot buster, Smith advised what all sailors, cowboys, electricians, sewers and knitters know: to avoid tangles, keep a cord or string tied in a coil so it can't move.
Yoshitaka Sakurada might not be Japan’s best pick for the cybersecurity portfolio: confused by a USB drive, he was forced to admit he’d never even used a computer.
The bad news is that, due to the sheer tininess of certain components, iPhones are particularly vulnerable to going haywire in the presence of helium. The good news is that helium just isn’t a problem you run into often. Sure enough, Apple’s user guide for the iPhone and Apple watch admits this is a problem: […]
A single smut-addicted official at the US Geological Survey led to an IT crisis there, according to an official report, with visits to more than 9000 porny URLs resulting in a malware infestation. The recommendations? Filter the web, and plug those damned USB ports. Correction: More than 9000 sites, not 9000 infections.
Anyone can learn piano, but don’t tell that to the bored kids who had to endure hours of “Chopsticks” and similar drills in their music lessons. Today, there’s a better way. Pianoforall lets you jump right in to discover what makes music fun, leaving you eager to learn more. In a simple but innovative approach, […]
There are two times you never want to just “eyeball” it: Conducting brain surgery and matching shades of paint for your walls. Whether you’re painting or repainting, make sure you’re never just “close enough” to the color you want. Not when the Nix Mini Color Sensor can scan and match any color perfectly. Small enough […]
In photography as in film, all the real artistry is in post-production – increasingly so, with the new possibilities cropping up in digital imaging. If you’re ready to get serious about your photography, may we suggest HDR Projects 2018 Pro. As working photographers can tell you, this imaging software can help you re-imagine even the […]