Thorfinn.au writes Researchers at the University of Rochester and their collaborators have developed a way to transfer 2.05 bits per photon by using “twisted light.” [Abstract here.]This remarkable achievement is possible because the researchers used the orbital angular momentum of the photons to encode information, rather than the more commonly used polarization of light. The new approach doubles the 1 bit per photon that is possible with current systems that rely on light polarization and could help increase the efficiency of quantum cryptography systems. Read more of this story at Slashdot.
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How To Encode 2.05 Bits Per Photon, By Using Twisted Light
An anonymous reader writes Fedora 21 Alpha has been released. After encountering multiple delays, the first development version is out for the Fedora.NEXT and Fedora 21 products. Fedora 21 features improved Wayland support, GNOME 3.14, many updated packages, greater server and cloud support, and countless other improvements with Fedora 20 already being nearly one year old. Read more of this story at Slashdot. 
McBooCZech writes “I am trying to set up a surveillance system. It is not intended to build a real-time on-line surveillance system to watch a wall of monitors on a 24/7 basis. The main scope is to record video (24/7) from the fixed cameras around our facility and when needed, get back to pre-recorded video and check it for particular event(s). Of course, it is possible to use a human to fast forward through video using a DVR-type FF function for short video sequences. Unfortunately, for long sequences (one week), it is not acceptable solution. I was searching online the whole weekend for the open source software for analysis of pre-recorded video in order to retrieve events and data from recorded video but had no luck. So I ask you, Slashdotters: Can you provide some suggestions for forensic software to analyze/find specific events in pre-recorded video? Some examples of events: ‘human entering restricted zone,’ ‘movement in the restricted zone,’ ‘light in the restricted zone.'” Read more of this story at Slashdot. 
An anonymous reader writes “Chris Testa recently presented at TAPR Digital Communications Conference and annouced his development work on a hand-held software defined radio. Running uClinux on an ARM Corex-M3 coupled to a Flash-based FPGA, it will be capable of receiving and transmitting from 100MHz to 1GHz. Designed to be low power, Chris has designed the radio primarily with the Amateur 2m and 70cm bands in mind. Currently in early prototyping stage, Chris intends to release the design under the TAPR Open Hardware License.” Read more of this story at Slashdot. 
dryriver writes “The BBC reports that cosmetic products using Bee Venom as an ingredient are a new ‘hot seller’ in the cosmetics market. Bee venom is said to have an effect on female skin similar to Botox injections, tightening the skin and making wrinkles and other signs of aging appear less pronounced than before. Unlike Botox, however, bee venom does not need to be injected, and can be absorbed through the skin naturally as an ingredient of cosmetic skin creme. Now comes the kicker: A special electrified device that causes bees to sting a synthetic membrane and release their venom can harvest about one gram of bee venom from 20 bee hives. That one gram of bee venom is worth a whopping 350 dollars. This makes Bee Venom almost seven times more valuable than Gold, which, in comparison, is worth only about 53 Dollars per 1 gram.” Read more of this story at Slashdot.