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Illuminating the developing world’s “invisible” consumers

While on location in remote areas of Kenya, researching automation and home manufacturing for his doctoral dissertation, Kenfield Griffith PhD '12 encountered a significant lack of data. For example, information he needed about whether people had access to indoor plumbing was scarce or nonexistent — and conducting traditional surveys to gather the data would be arduous and time consuming. But nearly all rural Kenyans, he realized, had texting-capable cell phones. Back in his MIT dorm room, Griffith built a …

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Origami anything

In a 1999 paper, Erik Demaine — now an MIT professor of electrical engineering and computer science, but then an 18-year-old PhD student at the University of Waterloo, in Canada — described an algorithm that could determine how to fold a piece of paper into any conceivable 3-D shape. It was a milestone paper in the field of computational origami, but the algorithm didn't yield very practical folding patterns. Essentially, it took a very long strip of paper and wound it into the desired shape. The resulting structures …

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Nevada Governor Kills Renewable Energy, Community Solar Bills With Deregulation Pending

It looked like renewable energy advocates in Nevada were going to win the legislative Triple Crown last week, but two of the three clean energy bills in contention never made it across the finish line. Republican Governor Brian Sandoval vetoed the two bills on Friday, citing uncertainty amid Nevada's pending shift to an open and competitive energy market. AB 206 would have

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Lightning, Ice Baths and Sandblasting: Inside the Quest for World’s Most Reliable String Inverter

Huawei is obsessed with failure. Or, to put it more precisely, the Chinese string inverter manufacturer is focused on pinpointing any possible source of failure in its products that need to endure at least 25 years in some of the world's harshest conditions. It uses that information to ensure that its inverters achieve industry-leading reliability. Not far from its corporate headquarters in Shenzhen, China, Huawei has a sprawling Global Compliance & Testing Center. The GCTC can mimic, and even exceed, …

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How cells combat chromosome imbalance

Most living cells have a defined number of chromosomes: Human cells, for example, have 23 pairs. As cells divide, they can make errors that lead to a gain or loss of chromosomes, which is usually very harmful. For the first time, MIT biologists have now identified a mechanism that the immune system uses to eliminate these genetically imbalanced cells from the body. Almost immediately after gaining or losing chromosomes, cells send out signals that recruit immune cells called natural killer cells, which destroy the …

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Energy Jobs: Enphase Diaspora, PG&E CEO, EEI Brass, National Grid—Plus Take The Survey

Another week brings more moves and shifts at the upper levels of the energy industry. The Edison Electric Institute (EEI), the national association of investor-owned electric companies, promoted Philip Moeller to executive VP of business operations group and …

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Bolt EV ad, EPA vs California, U.S. Senate electric cars, China emissions advice: Today’s Car News

Today, we've got news on this year's electric Bolt EV (an ad!), the Senate's former electric cars (more than a century ago), a stand-down by EPA head and climate-denier Scott Pruitt, and California partnering with China on zero-emission vehicles. All this and more on Green Car Reports. Over the weekend, we ran down our top green-car stories of...

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Trump EPA backs away from attacking California emission waiver

Sometime between March 1 and 7, a specific page vanished from the website of the U.S. Environmental Protection Agency. Amidst coverage of the removal of the word "science" from the mission statement of the EPA's Science and Technology Office, it went largely unnoticed. First posted in December 2008, and modified several times over the next eight...

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CleanTechnica Webinar: Tesla Model 3 Interior Predictions, Preparations, & Prayers

We're launching a new webinar series — "Electrifying" — and to squeeze some extra fun out of the Model 3 interior intrigue, we're going to kick off with a chat about “Tesla Model 3 Interior Predictions, Preparations, & Prayers.” Our own Kyle Field, Roger Pressman of EV Annex (author of Getting Ready for Model 3), Viktor Irle of EV Volumes, and I will be chatting about what we've seen, what we expect, and what we dream for in our …

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How California and China plan to push for millions of zero-emission vehicles

California has long been the nation's leader in zero-emission vehicles, with initiatives dating more than two decades. Now the Golden State is partnering with China, the world's largest car market, to accelerate that country's zero-emission goals. The state announced a new initiative with China, in which they will work together to accelerate the...