The great LED lightbulb rip-off: One in four expensive ‘long-life’ bulbs doesn’t last anything like as long as the makers claim article tells that many energy-efficient LED light bulbs failed before their advertised lifespan, tests have found. Disappointing result comes despite claims of them lasting 25,000 hours. The consumer watchdog and European partners tested five samples of →
http://spectrum.ieee.org/static/hacking-the-human-os Posted from WordPress for Android →
So, you want to measure the shape of an object, perform a 3D surface scan or conduct surface metrology tests. Google tells us there are many measurement methods to achieve these goals. Problem is, which one’s best for you? Non-Contact Distance Measurement Technologies article is a god overview to the non-contact measurement sensor technologies – →
http://spectrum.ieee.org/tech-talk/consumer-electronics/gadgets/cesasia-2015-chinas-maker-scene-is-exploding Posted from WordPress for Android →
Every now and then there are situations where you need to draw timing diagram. I have drawn those sometimes with different tools, but none of them have been ideal (text description, hand drawings, ASCII art etc..). So what are the existing solutions worth to check out? There are font-based solutions that let you “type” the →
http://spectrum.ieee.org/nanoclast/semiconductors/materials/supercapacitors-take-huge-leap-in-performance Posted from WordPress for Android →
Some notes from Mittaus ja Testaus 2015 fair visit I made today: Mixed signal oscilloscopes were on display from all major manufacturers. Some had oscilloscope, logic analyzer and RF spectrum in same box, all data shown on same time scale and long history buffers. Some scopes had high bandwidth and hardware assisted FFT for spectrum →
http://spectrum.ieee.org/consumer-electronics/gadgets/special-report-cesasia-2015 Posted from WordPress for Android →
http://kukuruku.co/hub/diy/usb-killer You know that you can mess up computer software and firmware throug USB port. But can USB powered device electrically destroy your PC? The answer seems to be yes after you check this nasty hack. Do not try this at home. Posted from WordPress for Android →
With VR headsets, the problem isn’t putting two displays in front of the user’s eyes. The problem is determining where the user is looking quickly and accurately. Few days ago I saw an interesting Introduction To Valve’s Tracking Hardware article that tells thew basics of ‘Lighthouse’ tracking unit operation: By scanning these IR lasers across →