This simple hydride heat engine prototype starts generating electricity the moment the hydride heat exchangers are dipped into hot and cold water. See it happen in this short video clip:

The hydride heat engine is comprised of solar hot water panels, a fan cooler or radiator, a hydride-based hydrogen compressor and an expander-generator set. After the hydrogen has been fully absorbed and the heat exchanger cooled, hot water from the flat plate solar collectors is circulated through the heat exchangers.

Scientists first reported detections of methane on Mars a decade and a half ago using measurements from Mars Express, an orbiting spacecraft built by the European Space Agency and is still in operation, as well as from telescopes on Earth. But the Trace Gas Orbiter, a newer European spacecraft launched in 2016 with more sensitive instruments, did not detect any methane at all in its first batch of scientific observations last year. Marco Giuranna, a scientist at the National Institute for Astrophysics in Italy, who leads the Mars Express orbiter’s methane measurements, said scientists on the Curiosity, Mars Express and Trace Gas Orbiter missions had been discussing the latest findings.

URHAM, N.C. — In an experiment that is half business model and half populist movement, a small company called Red Hat Software is charging $50 for an operating system called Linux that anyone can get free on the Internet, and it is paying programmers decent wages to write code that it will give away. Such support, particularly from Intel, whose close ties to Microsoft have recently shown signs of fraying, would lend considerable credibility both to Linux and to Red Hat’s plans to build a business by providing customer service and technical support for the free operating system. That is why the emergence of companies like Red Hat and Caldera Systems Inc. — a Linux distributor with a business plan based on corporate training, services and support — is considered crucial to the success of the free operating system.

Put it all on a big enough grid, one that could use the ample sunshine from the desert Southwest to keep Atlanta’s office towers cool, or the persistent wind in the Great Plains to run Midwestern factories, and you’d address the often-repeated critique of renewable energy: The sun isn’t always shining and the wind isn’t always blowing. Photo:

Todd Spoth for The Wall Street Journal

Like Eisenhower, Skelly had a plan: He wanted to begin building a new power grid that could carry inexpensive renewable electricity from places such as the Oklahoma panhandle to the east and west. Renewables on the Grid

In 2000, Skelly moved to Houston for his first job in the wind industry, developing wind farms for what became Zilkha Renewable Energy.

After fueling up, we started the day with the history of machine learning, then worked our way up to modern deep learning. Our instructors, both machine learning engineers at Google, infused our daily sessions with practical ML tips and tricks that they have learned. The topics were wide-ranging each day, from food preferences and entertainment to technical topics like the promises of machine learning or working through hypothetical questions by thinking things out loud.

The closest thing to an intuitive explainer than I know of is “The Illustrated Transformer,” but IMO it’s too light on intuition and too heavy on near-pseudocode (including stuff like “now you divide by 8,” as the third of six enumerated “steps” which themselves only cover part of the whole computation!) A sentence can have a pronoun at one end whose antecedent is all the way at the other, for example. But instead of looking at the current position plus a small local window around it, they instead look at

When the input is textual, this feels a lot like “reading” – the RNN processes the the first word, writes down a summary of what it’s gleaned so far, then processes the second word in light of the summary, updates the summary, processes the third word in light of the summary, updates the summary, etc.

How our commitment to consumers and our planet led us to use GM soy
By Pat Brown, CEO Founder of Impossible Foods
Starting later this month, some of the soy protein used in the Impossible Burger will come from genetically modified soybeans sourced from farms in Iowa, Minnesota and Illinois. From the start, Impossible Foods has embraced the responsible, constructive use of genetic engineering to solve critical environmental, health, safety and food security problems. And crucially for critics of GM agriculture and those interested in food and environmental safety: About 80% less herbicide is required to produce the Impossible Burger than an average American cow-derived burger, because of the large amount of crops required to feed a cow to produce beef.

Instead of anti-gravitational propulsion or flying machines from space, this possibility—and that is all it is, a possibility—has to do with specially designed radar reflector balloons and submarines, as well as a historical precedent for an obscure operational electronic intelligence gathering concept that first came to be during one of the hottest moments of the Cold War. Regardless, there is actually a historic precedent for clandestine operations where submarines launched balloons carrying radar reflectors as part of intelligence gathering operations. At a predetermined time, a US Navy submarine surfaced near Havana Bay, just long enough to time-releases a series of balloons carrying radar reflectors of varying sizes.

Since Stearman C3MB planes were so small and had so few seats, airline owners like Frank could make additional revenue from transporting mail from Salt Lake City, Utah, to Great Falls, Montana (a 500-mile route). Western wanted to expand their route structure in the western United States, and since this overlapped with NPA’s route stop in Salt Lake City, they eventually acquired the entire National Parks Airways airline. “We have a 1936 brochure that promotes a joint NPA-WAE package vacation ‘Sky Tours / America’s Greatest Vacation by Air,’ with highlighted attractions including San Diego, Los Angeles, Boulder Dam, Zion National Park, Salt Lake City, Yellowstone National Park, and Montana dude ranches,” says Force of the Delta Flight Museum’s archives.

Hence, a target of Seki and his contemporary Japanese mathematicians was the development of general multi-variable algebraic equations and elimination theory. In his book of 1674, however, Seki only gave the single variable equations after the elimination, but no account of the process at all, nor his new system of algebraic symbols. In 1678, Tanaka Yoshizane (田中 由真), who was from Hashimoto’s school and was active in Kyoto, authored Sampo-meikai (算法明記), and gave new solutions to Sawaguchi’s 15 problems, using his version of multi-variable algebra, similar to Seki’s.