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Open-source entrepreneurship

Open-source software is free software whose underlying code, or “source code,” is also freely available. Open-source development projects often involve hundreds or even thousands of volunteer coders scattered around the globe. Some of the best known are the Linux operating system, the Firefox web browser, and the WordPress blogging platform. This past spring, MIT professor of electrical engineering and computer science Saman Amarasinghe offered 6S194 (Open-Source Entrepreneurship), a new undergraduate course on …

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700,000 Tesla Model 3s Annually Just About Right, Says Musk

During a conference call on Monday with financial analysts to discuss a new bond offering, CEO Elon Musk let slip that his original estimate of annual Tesla Model 3 totals was about 200,000 short --- now he's saying that the all-electric car company will likely produce 700,000 units of the Model 3 annually one day

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Air Pollution Ranking In 32 Cities — How Does Yours Measure Up?

As we revealed in our previous article, air pollution is a serious problem that costs millions of lives each year and is a drain on the world economy. According to the World Health Organisation (WHO) air pollution is now a bigger health threat than HIV and Ebola. You might now be wondering how your own city measures up against others from around the world, where it sits in the rankings, and what the health effects of air pollution might be

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Lessons from pre-industrial climate control

Alpha Arsano is standing next to the MIT Chapel's marble alter, admiring the view through the domed skylight above. Outside, water surrounds the cylindrical red-brick structure like a shallow moat. Inside the chapel, the brick walls ripple like waves. Tiny windows line the walls and face downward so guests can see slivers of the moat. When sunlight reflects off the water at a certain angle, it shines into the chapel and dances onto the walls. Arsano, who just earned a master's in architecture studies and will …

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10 Battery Gigafactories Are Now in the Works. And Elon Musk May Add 4 More

Gigafactory announcements have been trending in recent months, with plans for at least 10 new plants revealed in the last six months. Half a dozen have been planned in the last month alone. In Germany, for example, the Daimler subsidiary Accumotive laid the foundation for a $550 million plant designed to take annual lithium-ion battery production from its …

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Sonnen’s US Factory Now Open, but Eco Compact Home Battery Won’t Come Until Late 2017

Sonnen completed its arrival on American shores by opening a factory in Atlanta. Collocated with the company's research and development lab, the facility began shipping the second-generation Sonnen Eco battery storage system last week. With 20 months of U.S. sales and a "solid pipeline of orders," Sonnen determined it could save money by moving the systems integration …

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New strategy produces stronger polymers

Plastic, rubber, and many other useful materials are made of polymers — long chains arranged in a cross-linked network. At the molecular level, these polymer networks contain structural flaws that weaken them. Several years ago, MIT researchers were the first to measure certain types of these defects, called “loops,” which are caused when a chain in the polymer network binds to itself instead of another chain. Now, the same researchers have found a simple way to reduce the number of loops in a polymer network and …

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Corvus Energy Wins 10-Year Contract For Hybrid Ferries In Scandinavia

In Scandinavia, ferries are an important part of the transportation system both internally and across international borders and most of those ferries are powered by diesel engines. But hybrid ferries are beginning to appear along ferry routes in the region Corvus Energy Wins 10-Year Contract For Hybrid Ferries In Scandinavia was originally published on

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Hyperloop One Scales Back Its Testing Plans

Last year, Hyperloop One boldly promised what no one had promised before -- a full-scale, full speed test of its Hyperloop system in the Nevada desert. It told the world it would be a "Kitty Hawk moment," a reference to the time when Orville and Wilbur Wright ushered in the era of manned flight on December 17, 1903. The test was promised by the end of 2016, then it was moved back to early 2017, then March 31. Now it has been moved back again, but that's not the end of the bad news

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Indian Railways Proposes 800 Megawatt Solar Park

On the heels of the successful allocation of 750 megawatts of solar power capacity at record-low rates, the Indian Railways is now looking to replicate this model to ensure a cheap and sustainable power supply. Indian Railways Proposes 800 Megawatt Solar Park was originally published on CleanTechnica. To read more from …