Analog Solver Could Find the Best Solutions to NP-hard Problems

Zoltan Toroczkai and collaborators have been working toward developing a novel analog mathematical approach that will help advance computation beyond the digital framework. They have a mathematical, analog “solver” that can potentially find the best solution to NP-hard problems. NP-hardness is a theory of computational complexity, with problems that are famous for their difficulty. And …

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China Has Radio Antenna to Talk to Submarines and It Covers Five Times Area of NY City

China has built a giant radio antenna that uses five times the area of New York City. It will be used to communicate with submarines. The Wireless Electromagnetic Method (WEM) project took 13 years and will emit extremely low-frequency radio waves (ELF waves). Those waves have been linked to cancer by the World Health Organisation. …

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Copyrights Are Expiring Again in the USA After a 20 Year Freeze

Yesterday all copyrighted works published in 1923 fell into the public domain, with only a few exceptions. Internet grassroot organizations and companies like Google and Reddit now oppose copyright extension. In 2012, these groups stopped the Internet filtering bill called the Stop Online Piracy Act. Today’s opponents of copyright extensions are better funded and more …

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NASA New Horizons Had a Successful Flyby Mission 4 Billion Miles Away

New Horizons’ high-resolution Long-Range Reconnaissance Imager (LORRI) provided the best indication of Ultima Thule’s size and shape so far. Preliminary measurements of this Kuiper Belt object suggest it is approximately 20 miles long by 10 miles wide (32 kilometers by 16 kilometers). An artist’s impression at right illustrates one possible appearance of Ultima Thule, based …

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China’s Chang’e 4 Spacecraft Will Land on Dark Side of the Moon in the Next 60 Hours

China’s space agency said its control center in Beijing would choose a suitable time to try the landing, but the Smithsonian Institution, the American museums and research centers group, reported that the craft was expected to set down on the Von Kármán crater landing point between January 1 and 3. The moon lander was launched …

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