University of California, Berkeley, scientists have created a blue light-emitting diode (LED) from a trendy new semiconductor material, halide perovskite, overcoming a major barrier to employing these cheap, easy-to-make materials in electronic devices.
In the process, however, the researchers discovered a fundamental property of halide perovskites that may prove a barrier to their widespread use as solar cells and transistors.
Alternatively, this unique property may open up a whole new world for perovskites far beyond that of today’s standard semiconductors.
Circa 2019 Event 201, hosted by the Johns Hopkins Center for Health Security, envisions a fast-spreading coronavirus with a devastating impact.
Back in 2001, it was a smallpox outbreak, set off by terrorists in U.S. shopping malls. This fall, it was a SARS-like virus, germinating quietly among pig farms in Brazil before spreading to every country in the world. With each fictional pandemic Johns Hopkins experts have designed, the takeaway lesson is the same: We are nowhere near prepared.
Event 201 simulation hosted by university’s Center for Health Security envisions a fast-spreading coronavirus with a devastating impact.
It’s pretty difficult to believe it at this point, but there are still groups of Tesla critics who insist that Gigafactory 3 is not really fully operational. A central part of this thesis is the allegation that Gigafactory 3 does not have a stamping press, which means that Tesla’s China team is only assembling cars in the Shanghai-based factory using pre-stamped panels from Fremont.
A recently released video from Tesla China has just decimated these allegations in a subtle but definitive manner. The clip was short, less than 30 seconds long, but it showed a busy stamping press operating in Gigafactory 3. The video was released in China, and shared on Twitter by Tesla enthusiast @JayinShanghai.
According to one recent study, there’s at least 5 trillion pieces of plastic in the ocean. That’s more than 250 tons. So what to do with mountains of plastic waste with nowhere to go? Katharina Unger thinks we should eat it.
The Austrian designer partnered with Julia Kaisinger and Utrecht University to develop a system that cultivates edible plastic-digesting fungi. That’s right, you can eat mushrooms that eat plastic. In 2012, researchers at Yale University discovered a variety of mushroom (Pestalotiopsis microspora) that is capable of breaking down polyurethane. It kicked off a craze of research exploring how various forms of fungi can degrade plastic without retaining the toxicity of the material. The findings got Unger thinking: What if we could turn an environmental problem (waste) into an environmental solution (food)?
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AeroFarms has put $30m into a green revolution that seeks to produce more crops in less space, but whether it’s economically viable is an open question.
Taking vertical urban indoor farming efficiency to the next level, a new automated plant coming to Japan will be staffed entirely by robots and produce 30,000 heads of lettuce daily.
The so-called Vegetable Factory is a project of Spread, a Japanese company already operating vertical farms. Located in Kyoto, its small army of bots will various seed, water, trim and harvest the lettuce. Spread’s new automation technology will not only produce more lettuce, it will also reduce labor costs by 50%, cut energy use by 30%, and recycle 98% of water needed to grow the crops.
We are struggling to feed half the world sustainably – but reorganising where we farm could allow us to feed 10 billion people within sustainability boundaries.
Satellite and Earth observation startup Capella Space has unveiled a new design for its satellite technology, which improves upon its existing testbed hardware platform to deliver high-resolution imaging capable of providing detail at less than 0.5 meters (1.6 feet). Its new satellite, code-named “Sequoia,” also will be able to provide real-time tasking, meaning Capella’s clients will be able to get imaging from these satellites of a desired area basically on demand.
Capella’s satellites are “synthetic aperture radar” (SAR for short) imaging satellites, which means they’re able to provide 2D images of the Earth’s surface even through cloud cover, or when the area being imaged is on the night side of the planet. SAR imaging resolution is typically much higher than the 0.5-meter range that Capella’s new design will enable — and it’s especially challenging to get that kind of performance from small satellites, which is what Sequoia will be.
The new satellite design is a “direct result of customer feedback,” Capella says, and includes advancements like an improved solar array for faster charging and quicker recycling; better thermals to allow it to image for longer stretches at a time; a much more agile targeting array, which means it can switch targets much more quickly in response to customer needs; and a higher bandwidth downlink, meaning it can transfer more data per orbital pass than any other SAR system from a commercial company in its size class.
But a new figure blows all of these out of the water. Last week, British renewable energy developer SSE announced construction of Dogger Bank Wind Farm off the eastern coast of England in the North Sea.
With a capacity of 3.6 gigawatts (GW), Dogger Bank will be three times bigger than the world’s biggest existing wind farm, the nearby 1.2 GW Hornsea One.
Located near a seaside town called Ulrome, which is 195 miles north of London, Dogger Bank will have three separate sites—Creyke Beck A, Creyke Beck B, and Teesside A—each with a 1.2 GW capacity, and construction is slated to take two years.
