Archive for the ‘sustainability’ category: Page 579
Mar 31, 2017
Solar-Powered Graphene Skin Enables Prosthetics to Feel
Posted by Nancie Hunter in categories: biotech/medical, cyborgs, robotics/AI, sustainability
The team tested their device on a prosthetic hand. When the skin patches on the skin were enabled, the prosthetic could touch and grab soft objects like a normal hand. But when the skin was not turned on, the hand crushed the objects.
The skin requires just 20 nanowatts of power per square centimeter, according to the paper. Right now, the energy captured by the photovoltaic cells has to be used immediately, but the team has another prototype in development that includes flexible supercapacitors to store excess energy.
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Mar 30, 2017
This fully transparent solar cell could make every window and screen a power source
Posted by Shane Hinshaw in categories: engineering, mobile phones, solar power, sustainability
Back in August 2014, researchers at Michigan State University created a fully transparent solar concentrator, which could turn any window or sheet of glass (like your smartphone’s screen) into a photovoltaic solar cell. Unlike other “transparent” solar cells that we’ve reported on in the past, this one really is transparent, as you can see in the photos throughout this story. According to Richard Lunt, who led the research at the time, the team was confident the transparent solar panels can be efficiently deployed in a wide range of settings, from “tall buildings with lots of windows or any kind of mobile device that demands high aesthetic quality like a phone or e-reader.”
Now Ubiquitous Energy, an MIT startup we first reported on in 2013, is getting closer to bringing its transparent solar panels to market. Lunt cofounded the company and remains assistant professor of chemical engineering and materials science at Michigan State University. Essentially, what they’re doing is instead of shrinking the components, they’re changing the way the cell absorbs light. The cell selectively harvests the part of the solar spectrum we can’t see with our eye, while letting regular visible light pass through.
Scientifically, a transparent solar panel is something of an oxymoron. Solar cells, specifically the photovoltaic kind, make energy by absorbing photons (sunlight) and converting them into electrons (electricity). If a material is transparent, however, by definition it means that all of the light passes through the medium to strike the back of your eye. This is why previous transparent solar cells have actually only been partially transparent — and, to add insult to injury, they usually they cast a colorful shadow too.
Mar 30, 2017
First on the Martian menu: spuds
Posted by Dan Kummer in categories: climatology, space, sustainability
LIMA, Peru (AP) — If human beings finally reach Mars, they may find themselves depending on the humble, if hardy potato.
Scientists in Peru have used a simulator that mimics the harsh conditions on the Red Planet to successfully grow a small potato plant.
It’s an experiment straight out of the 2015 Hollywood movie “The Martian” that scientists say may also benefit arid regions already feeling the impact of climate change.
Mar 28, 2017
Physicist Wants To Beam Solar Energy Back From Moon’s Surface
Posted by Bruce Dorminey in categories: solar power, space, sustainability
The Moon as a collecting point for solar energy for use on Earth and maybe even into the outer solar system.
One man’s decades-long dream of harnessing sunlight from the lunar surface.
Mar 27, 2017
Solar Powered e-Skin Could Take Prosthetics to the Next Level
Posted by Gerard Bain in categories: biotech/medical, cyborgs, robotics/AI, sustainability
Ingenious e-skin invented by scientists from the University of Glasgow improves the performance of prosthetic limbs through sensitive sensors.
Mar 25, 2017
Liquid energy storage system gets the “MOST” out of the Sun
Posted by Klaus Baldauf in categories: nuclear energy, solar power, sustainability
Solar power is potentially the greatest single energy source outside of controlled nuclear fusion, but the Sun is literally a fair weather source that relies on daytime and clear skies. To make solar energy a reliable, 24-hour source of energy, a team of scientists at Sweden’s Chalmers University of Technology in Gothenburg is developing a liquid energy storage medium that can not only release energy from the Sun on demand, but is also transportable.
The Chalmers team has been working on variants of its system, called a MOlecular Solar Thermal (MOST), for over six years, with a conceptual demonstration in 2013. It differs from other attempts to store solar energy in things like heated salts and reversing exothermic reactions in that the MOST system stores the energy directly in the bonds of an organic chemical.
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Mar 25, 2017
Tesla Model 3 safest car on the road
Posted by Shailesh Prasad in categories: sustainability, transportation
Safety has been a preoccupation of consumers and carmakers for the past few decades, with some companies — like Volvo — making it their key selling point.
Automobiles are already far safer now than ever before, but advances in technology keep raising the bar for what consumers expect. And Morgan Stanley auto analyst Adam Jonas thinks the forthcoming Tesla Model 3, priced at $35,000 and expected to launch later this year, will lead the way in dramatic fashion.
Between 30,000 and 40,000 people are killed in car accidents every year in the US alone, so the stakes for drastically improved safety are high.
Mar 25, 2017
Tesla Solar Roofs Tiles Are Coming Out Next Month
Posted by Shailesh Prasad in category: sustainability
Mar 21, 2017
Where we’re going, we don’t need roads
Posted by Alireza Mokri in categories: robotics/AI, supercomputing, sustainability, transportation
I can conceive that in saner circumstances, Tesla Model X might never have come to be. But the strongest blades are forged in the hottest fires, and for those that survive the heat, something very special is born.
Model X is special in a way that the automotive industry hasn’t been able to conceive in a very long time. It is an all-electric SUV that can seat up to seven people with bucketloads of cargo space to spare. It is a sporty all-wheel drive car that can throw instant and ungodly amounts of torque at the tarmac. It is a serene cruiser with its silent drive and breathtaking panoramic windshield. It is, in essence, an eight-eyed falcon with a supercomputer brain that dreams of a future of fully autonomous driving. And I had to have it.
As a Model S owner, I had already experienced and enjoyed more than a year of zero emissions Tesla driving. I knew what great things the car was capable of. I’d felt the thrill of instant torque, I’d fallen in love with the one-foot, regenerative braking driving experience, and I’d been chauffeured up and down the M1 by my very own Autopilot. Where the Model S presented itself as an all electric car — a subtle statement and proof of concept about a future of green but powerful motoring, Model X presented itself as a bold vision for what a car could be, if its only blueprint were imagination.