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Electronics

— Electronics

Wireless sensor alerts your smartphone as food begins to spoil

By - December 8, 2014 1 Picture
While the stench of rotting food would cause you to stop from chowing down, chances are it became unfit for consumption some time before those funky aromas wafted through your nostrils. Chemists at MIT have been working on a wireless, inexpensive sensor that, among other things, identifies spoiled food early by detecting gases in the air. It then shares its data with a smartphone, potentially alerting users to that soon-to-be moldy fruit in the bottom of the fridge. Read More
— Electronics

New electrolyte to enable cheaper, less toxic magnesium-sulfur-based batteries

By - November 30, 2014 1 Picture
There's another promising contender in the race to supplant the dominance of lithium-ion and metal-hydride based batteries in the world of energy storage. New research from the Karlsruhe Institute of Technology's (KIT's) Helmholtz Institute Ulm (HIU) details the development of an electrolyte that can be used in new magnesium-sulfur battery cells that would be more efficient and inexpensive than the dominant types of batteries in use today. Read More

Philips introduces 75-watt equivalent flat LED light bulb

The marketplace for more-or-less normal-looking LED light bulbs became just a little more crowded yesterday, when Philips announced the dimmable 75-watt equivalent version of its SlimStyle bulb. With an output of 1,100 lumens, it's a significant step up from the 60-watt equivalent 800-lumen model that previously sat at the top of the SlimStyle line. Read More

Disposable electronic circuits produced with a T-shirt printer

Someday soon, your milk carton may be able to tell you that the milk has spoiled, or your bandage may indicate that it needs changing. These and other things could be made possible by a new technique developed at Singapore's Nanyang Technological University, which allows disposable electronics to be printed on a variety of surfaces, using an existing T-shirt printer. Read More
— Electronics

QR codes could generate 3D images on phones – no internet required

By - November 14, 2014 3 Pictures
Whether they're on product packaging, promotional materials or in magazines, most QR codes do the same thing – when a smartphone scans them with its camera, they trigger that phone's web browser to navigate to a given website. In the near future, however, they may be used to securely display 3D images on the user's phone, without even involving the often-untrustworthy internet. Read More

Pyle Audio's suitcase-style turntable plays vinyl and MP3s

While many people consider record players to be "delightfully retro," those same folks might not have much use for something that plays nothing but vinyl. Pyle Audio has set out to address that, with its decidedly un-retro-named PVTTBT8 turntable. It looks like something you'd bring to a 1950s sock-hop, but it plays both records and digital music files. Read More
— Electronics

New RF circulator to run rings around old technology

By - November 12, 2014 2 Pictures
In the world of electronic components, there are many devices out there that do their job well and reliably, but are almost never heard of – even though they may be vital to equipment that plays a role in our technology-driven lives. The radio frequency (RF) circulator is just such a device: it has simply done its job as a nondescript box of gubbins buried in radio communications systems, quietly directing radio frequency signals to the places they should go. Now researchers at the University of Texas have given the RF circulator a makeover. Not only is the new prototype smaller, lighter, and cheaper, it's also claimed to be easily adapted to different frequencies on the fly, which is something the old style circulator cannot do. Read More

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