Caltech’s recent breakthrough has moved us closer to achieving the transformative potential of space-based solar power.
Category: sustainability – Page 186
The mammalian retina is a complex system consisting out of cones (for color) and rods (for peripheral monochrome) that provide the raw image data which is then processed into successive layers of neurons before this preprocessed data is sent via the optical nerve to the brain’s visual cortex. In order to emulate this system as closely as possible, researchers at Penn State University have created a system that uses perovskite (methylammonium lead bromide, MAPbX3) RGB photodetectors and a neuromorphic processing algorithm that performs similar processing as the biological retina.
Panchromatic imaging is defined as being ‘sensitive to light of all colors in the visible spectrum’, which in imaging means enhancing the monochromatic (e.g. RGB) channels using panchromatic (intensity, not frequency) data. For the retina this means that the incoming light is not merely used to determine the separate colors, but also the intensity, which is what underlies the wide dynamic range of the Mark I eyeball. In this experiment, layers of these MAPbX3 (X being Cl, Br, I or combination thereof) perovskites formed stacked RGB sensors.
The output of these sensor layers was then processed in a pretrained convolutional neural network, to generate the final, panchromatic image which could then be used for a wide range of purposes. Some applications noted by the researchers include new types of digital cameras, as well as artificial retinas, limited mostly by how well the perovskite layers scale in resolution, and their longevity, which is a long-standing issue with perovskites. Another possibility raised is that of powering at least part of the system using the energy collected by the perovskite layers, akin to proposed perovskite-based solar panels.
Researchers not only want to further develop printable solar cells technologically. Rather, they want to provide solutions with them in order to implement different application variants.
Scientists say they’ve successfully transmitted solar energy gathered in orbit down to the Earth’s surface.
Volkswagen has finally unveiled the version of the ID.Buzz electric van that’s destined for North America, and there’s more to it than you might think. The three-row design with two extra seats is clearly the main draw for roadtrippers and growing families, but this isn’t just a stretched version of the modern Microbus. It boasts a larger 91kWh battery (versus 82kWh for the two-row), a more powerful 282HP motor for the rear-wheel drive trim (versus 201HP) and a higher 99MPH top speed (versus 90MPH). While there are no range estimates yet, there will also be an optional all-wheel drive configuration with a 330HP dual-motor system.
The interior tech hasn’t changed much from the two-row model, although that’s not necessarily a bad thing. You’ll still face a 5.3-inch digital instrument cluster and a 12.9-inch infotainment display. The larger ID.Buzz now has the easier-to-use interface from the ID.7, though, and you’ll find a total of eight USB-C ports — helpful when friends in the back want to charge their phones. The three-row EV also comes standard with Level 2 driver assistance (including lane centering), and the customizable cabin lighting doubles as a status indicator for everything from charging levels to navigation directions.
The North American van also touts the largest panoramic roof of any car in the VW group at 67.4 inches long, and uses electrochromic glass to turn opaque when it’s not needed. You’ll also find a 110V outlet under the passenger seat area, and a 12V port in the cargo space can charge more of your gear. A nine-speaker audio system is standard, but you can upgrade to a 14-speaker Harman Kardon unit.
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These high-performance magnets, used in wind turbines and electric vehicles, are vital for building a zero-carbon economy. Currently, the best permanent magnets available require rare earth elements.
Making homes for more than a decade, Joseph Mathew accumulated a host of ideas but most important of all, he wanted his house to be sustainable. Here are some pictures of his dream house.
The flexible silicon solar cell could find use in places where more expensive solar cells might have been favoured.
A new technique for producing silicon solar cells that are more than 24% efficient and yet can be rolled up like a sheet of paper has been demonstrated. The work could allow solar cells to be used in applications that currently use more expensive thin-film alternatives.
SAN FRANCISCO (Reuters) — Tesla Inc has doubled discounts on some already made new Model 3 electric cars and offered discounts on the Model Y and others in its U.S. inventory to entice buyers amid economic uncertainty, rising competition and the upcoming redesign of its mainstay model.
In California, a Model 3 variant in inventory was priced at $42,060, a discount of $2,680 to the price of newly ordered cars, according to its website. That is double the $1,300 discount on Model 3 cars offered less than two weeks ago.
New advancements in automation, AI, connectivity, sustainability, and more propel research forward.