Take a tour through the world of the light-emitting diode and learn - who invented it, how to use it, and how to make your own. more Make presents: The Resistor www.youtube.com The Capacitor - www.youtube.com audio & video by Collin Cunningham Makezine.com
Product Link: bit.ly TigerDirect TV brings you the Samsung 46" Class LED 3D HDTV. Change the way you watch television with Samsung UN46ES7500 46" Class Slim LED 3D HDTV.
Every so often, internet news aggregator sites run a story about a research group that put an LED into a contact lens, then inserted it into a rabbit's eye. I figured that I would try the same thing, but put the lens into my own eye. I accomplished this by laminating a coil of wire and an 0402 surface-mount LED between two ordinary soft contact lenses. I was hoping the lenses would stick to each other, but they did not, so I ended up fixing the edges together by pinching the plastic together with hot tweezers. This held well enough to capture a minute of video with the LED illuminated in my eye. For video purposes, I mounted the LED facing outward. An actual VR/AR display would have the LED facing inward. I powered the LED by using a very primitive spark-gap transmitter built from a mechanical relay to send RF energy into a larger coil held near my eye. The large coil coupled the energy into the contact lens coil and pulsed the LED. nextbigfuture.com www.cs.uic.edu
Make your own with these parts from Amazon: bit.ly Josh Lewis shows you how to make an LED Throwie, a concept created and pioneered by Graffiti Research Lab [graffitiresearchlab.com]. This kit was sold at the Maker Faire in San Mateo, CA. (Josh is not associated with Graffiti Research Labs.)
Hack a broken Zippo lighter and turn it into a high-powered LED flashlight for under $5. Thanks to: Richard Koharik for the idea www.rjkoharik.com More videos: www.kipkay.com ►Easy Projects bit.ly ►Pranks & Jokes: bit.ly ►Laser Videos: bit.ly ►Hacks & Mods: bit.ly ►Spy Gadgets & Devices: bit.ly ►Explosions & Loud Things: bit.ly
Available to buy now: ukf.me Become a fan of Culprate: www.facebook.com Follow Culprate on Twitter: twitter.com Become a fan of Friction: www.facebook.com Follow Friction on Twitter: www.twitter.com One of the biggest, most respected and revered names in drum & bass is without doubt Shogun Audio's head honcho, Friction. 2012 is looking to be a pinnacle year for the DJ/producer as he readies not only his debut artist album but also gets set to take over the most prestigious job in the business; BBC Radio 1's flagship Drum & Bass Show. Become a fan of Shogun Audio: www.facebook.com www.facebook.com www.ukfmusic.com http www.twitter.com
Available to buy now from iTunes: ukf.me Become a fan of Friction: www.facebook.com Follow Friction on Twitter: www.twitter.com One of the biggest, most respected and revered names in drum & bass is without doubt Shogun Audio's head honcho, Friction. 2012 is looking to be a pinnacle year for the DJ/producer as he readies not only his debut artist album but also gets set to take over the most prestigious job in the business; BBC Radio 1's flagship Drum & Bass Show. Become a fan of Shogun Audio: www.facebook.com www.facebook.com www.ukfmusic.com http www.twitter.com
www.learningdslrvideo.com I have really been in the need to a small 150 LED light that I can take anywhere. So I decided to compare 2 different brands one expensive and one inexpensive. These lights have so many uses, I even used one of them to fix my kitchen sink. I am not so much interested in using this as a key light, I am not interested in using it for accent lights, hair light for 3/4 back fill light, you name it, they have a ton of uses. In testing the two, I have found a clear winner. Konova Ledgo CN-B150 vs. Lite Panel MicroPro. Construction Both are equal in regards to construction, both are made out of light weight plastic and wouldn't survive a 4 foot drop on concrete. In fact I am not sure either of them would last a few years of constant use before breaking. For instance here is a review from someone line that had been using it for while: ...but it's cheaply made plastic. I have to tape the base because it bent and you can't buy replacement parts. I was kind of expecting a metal case from the Lite Panel because of the huge price difference and the pro in the name. To me if you put pro on something it needs to take the abuse. The Lite Panel is $390 and the Konova is only $130. When unboxing the Lite Panel I noticed this warning note saying if I installed the batteries wrong and kill that it is my fault, I was kind of taken back when I read this because this is a sure sign that the circuit design is not well thought out and has no fault protection built in ...
