Rewritable Paper that uses light and no ink

Developing efficient photoreversible color switching systems for constructing rewritable paper is of significant practical interest owing to the potential environmental benefits including forest conservation, pollution reduction, and resource sustainability. Here we report that the color change associated with the redox chemistry of nanoparticles of Prussian blue and its analogues could be integrated with the photocatalytic …

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US Air Force will have first combat lasers on large C-17 and C-130s and then later miniaturized for F-16 and F-35 fighter jets

The US Air Force plans to arm its fleet of drones and fighter jets with high-tech laser weapons. Air Force Research Laboratory officials have said they plan to have a program of record for air-fired laser weapons in place by 2023. Ground testing of a laser weapon called the High Energy Laser, or HEL, was …

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Navy uses high power laser to accelerate thin plastic foils to over 1180 kilometers per second

A set of experiments conducted on the Nike krypton fluoride (KrF) laser at the U.S. Naval Research Laboratory (NRL) nearly five years ago has, at long last, earned the coveted Guinness World Records title for achieving “Highest Projectile Velocity” of greater than 1,000 kilometers per second (km/s), a speed equivalent to two-and-a-quarter million miles per …

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Alternative Nuclear fusion projects Tri-alpha Energy, General Fusion and Helion Energy featured in Nature

Tri Alpha is testing a linear reactor that it claims will be smaller, simpler and cheaper — and will lead to commercial fusion power in little more than a decade, far ahead of the 30 to 50 years often quoted for tokamaks. The ITER tokamak is mired in delays and cost overruns. The facility, being …

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Briefly Profitable Litecoin mining via Amazon Cloud Services and clever coding

Litecoin is an alternative to Bitcoin (BTC) that is designed to reduce the comparative advantage of using custom ASICs (or GPUs) for mining it relative to using a conventional CPU. Its future is even less certain that BTC, of course, as a later comer, but the technically interesting bits lie in its proof-of-work hash function: …

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Carnival of Nuclear Energy 130

The Carnival of Nuclear Energy 130 is up at Atomic Insights. Canadian Energy Issues – Modern cities cannot function without electricity. That electricity is usually the product of other people from outside of the city, which, says Steve Aplin, illustrates Adam Smith’s division of labour in real time action. City dwellers do not produce most …

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EIA projects world energy use to increase 53 percent by 2035; China and India account for half of the total growth

The International Energy Outlook 2011 (IEO2011) was released today by the U.S. Energy Information Administration (EIA) presents updated projections for world energy markets through 2035. Worldwide energy consumption grows by 53 percent between 2008 and 2035 in the Reference case, with much of the increase driven by strong economic growth in the developing nations especially …

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Sonic.net 1 Gbps fiber to the home for $70/month in projects with Google

California ISP Sonic.net this week roll out its new 1Gbps, fiber-to-the-home service for $69.99 a month. Dane Jasper, Sonic.net’s CEO, says the new fiber-to-the-home trial in Sebastopol, California deployment will reach about 700 homes when complete. “Honestly, only as those wrap up will we have a complete picture of the economic model,” he says. “But …

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New architecture for quantum computers based on Quantum antannae

Quantum antennae enable the exchange of quantum information between two separate memory cells located on a computer chip. (Graphics: Harald Ritsch) The Austrian research group led by physicist Rainer Blatt suggests a fundamentally novel architecture for quantum computation. They have experimentally demonstrated quantum antennae, which enable the exchange of quantum information between two separate memory …

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Saudi Aramco discusses oil technology to access trillions of barrels of oil and Brazil plans underwater cities to access deep water oil

1. Although the current global oil reserves in place are estimated at 14 trillion barrels, only about 1.2 trillion can be recovered, said Khaled Al Buraik, executive director of the government-controlled Saudi Aramco. However, in the near future new oil technology will enable 2 trillion barrels to be accessed. “Advanced technology in hydrocarbon production could …

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Eric Drexler, Ralph Merkle or Robert Freitas Are not to Blame When Billions spent on Ordinary Chemistry Was called Nanotechnology Work- You Got What You Paid For

Again there are people complaining that the vision of Eric Drexler was not realized after 25 years since he wrote Engines of Creation and other research papers on molecular nanotechnology. However, almost no money was spent funding the research and development of molecular nanotechnology. Significant amounts of money were devoted to mostly relabeled chemistry starting …

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