Zothecula writes: With LEDs being the preferred long-lasting, low-energy method for replacing less efficient forms of lighting, their uptake has dramatically increased over the past few years. However, despite their luminous outputs having increased steadily over that time, they still fall behind more conventional forms of lighting in terms of brightness. Researchers at Princeton University claim to have come up with a way to change all that by using nanotechnology to increase the output of organic LEDs by 57 percent. Read more of this story at Slashdot.
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Breakthrough In LED Construction Increases Efficiency By 57 Percent
1sockchuck (826398) writes Bitcoin hardware vendor BitFury has opened a 20-megawatt data center to expand its cloud mining operations. The hashing center in the Republic of Georgia is filled with long rows of racks packed with specialized Bitcoin mining rigs powered by ASICs. It’s the latest example of the Bitcoin industry’s development of high-density, low-budget mining facilities optimized for rapid changes in hardware and economics. It also illustrates how ASIC makers are now expanding their focus from retail sales to their in-house operations as Bitcoin mining becomes industrialized. Read more of this story at Slashdot. 
SpzToid (869795) writes 224 million U.S. cable TV set-top boxes combined consume as much electricity as produced by four giant nuclear reactors, running around the clock. They have become the biggest single energy user in many homes, apart from air conditioning. Cheryl Williamsen, a Los Alamitos architect, has three of the boxes leased from her cable provider in her home, but she had no idea how much power they consumed until recently, when she saw a rating on the back for as much as 500 watts — about the same as a washing machine. A typical set-top cable box with a digital recorder can consume as much as 35 watts of power, costing about $8 a month for a typical Southern California consumer. And the devices use nearly as much power turned off as they do when they are turned on. The article outlines a voluntary industry agreement that should make a dent in this power consumption (it “calls for a power reduction in the range of 10% to 45% by 2017”), but makes the point that much larger gains are possible: “Energy experts say the boxes could be just as efficient as smartphones, laptop computers or other electronic devices that use a fraction of the power thanks to microprocessors and other technology that conserves electricity. Ideally, they say, these boxes could be put into a deep sleep mode when turned off, cutting consumption to a few watts. At that rate, a box could cost less than $1 a month for power, depending on how much it is used.” Read more of this story at Slashdot. 
In case you haven’t heard, California is screwed. The drought has turned our perennially water-challenged state into a desiccated husk. In these dire times, we look toward desalination, an idea long-promised but never quite delivered in the U.S. But a spate of new technologies —graphene, solar mirrors, and more—could finally make desalination viable for our freshwater needs. Read more… 
porkchop_d_clown (39923) writes “When Hendrikje van Andel-Schipper died in 2005, she was the oldest woman in the world. [New Scientist reported Wednesday] that, at the end of her life, most of her white blood cells had been produced by just two stem cells — implying the rest of her blood stem cells had already died, and hinting at a possible limit to the human life span.” Read more of this story at Slashdot. 
Starting today, all of Apple’s retail stores will accept any of the company’s ageing products for recycling —and, if it looks resaleable, you might even get some store credit, too. Read more… 