Some spiders "decorate" their Webs with zigzags and spirals, but the reason why has remained a mystery. Researchers from the University of Sydney now think that the web patterns may be used to reflect ultraviolet light in a way that helps nab insects. From National Geographic:
The team concluded that the webs may be essentially setting a "light trap," where the reflection of the web strands lure passing insects to their deaths.
"Interestingly, the webs [decorated with crosses] were a little more sophisticated than we first thought," (researcher Dieter) Hochuli said.
"The spiders seem to be exploiting the sensitivity of some prey to UV light in particular. When we filtered different components of the visual spectrum from webs … we dramatically altered prey-capture rates," he said.
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 […]