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Scientists have discovered a way to store the Sun’s energy in rocks and convert the heat into electricity. Using an approach called concentrated solar power, a team of researchers from Tanzania found that certain granite and soapstones could store solar heat at a sufficiently high density to serve as a primitive form of battery. Thermal energy storage has been touted as a low-cost way of storing and harvesting energy from the Sun, even when it’s no longer shining. Last year, scientists from Sweden and China came up with a way to store solar energy for nearly two decades using an ultra-thin chip, which serves as a thermoelectric generator. The innovative system could technically be integrated into electronics, however it remains too costly to implement at scale. By contrast, the granite and soapstone samples offer a low cost and readily available method of storing solar energy, the researchers said. “Using rocks as a storage medium offers the potential of affordability due to the abundance and low cost of rocks,” the researchers noted in a paper outlining their findings. “An air-rock bed has low investment cost, high reliability and efficiency, is environmentally friendly, and does not require the use of heat exchangers.” The rock bed captures and collects solar thermal energy up to 600 °C, which is then used to boil liquid into steam that powers a generator turbine to produce electricity. The results were detailed in a study, titled ‘Experimental Investigation of Soapstone and Granite Rocks as Energy-Storage Materials for Concentrated Solar Power Generation and Solar Drying Technology’, published by the American Chemical Society. Other thermal energy storage systems have focussed on salt and water, with researchers at Eindhoven University of Technology unveiling a heat battery last year that they claim could work at scale. Rather than capturing heat from the Sun, the system instead collects industrial residual heat. “While the potential is great, we have also seen many great potential technologies that have not made it,” the scientists said at the time. “So we’re going to keep our feet on the ground and take this one step at a time.” Read More Scientists break world record for solar power window material Scientists smash world record for solar power window material Nasa holds urgent meeting about sightings of UFOs Opinion: The real reason companies are warning that AI is as bad as nuclear war

BELLEVUE, Wash--(BUSINESS WIRE)--May 31, 2023--

Nasa has convened a public meeting to discuss sightings of unexplained phenomena in the sky. The space agency has convened a panel to examine sightings of what it calls UAPs, or unidentified aerial phenomena, which many refer to as UFOs. Now the group has given its first public discussion, ahead of a report due to be published later this year. The space agency said the work was aimed at making it easier for people to report those UAPs, as well as to examine what exactly they might be. But representatives said that the panel involved in the work had received sustained abuse that had got in the way of that work. “Harassment only leads to further stigmatisation of the UAP field, significantly hindering the scientific progress and discouraging others to study this important subject matter,” said Nicky Fox, associate administrator for NASA’s science mission directorate/ Nonetheless, Nasa said that it would be working to examine those reports of UAPs. “The presence of UAPs raises concerns about the safety of our skies, and it’s this nation’s obligation to determine if these phenomena pose any potential risks to airspace safety,” said Daniel Evans, Nasa’s assistant deputy associate administrator for research. The work is about safety but also the space agency’s “responsibility to be honest and forthright and to follow the science”, he said. But the data on UAPs has so far been “fragmented”, according to the panel’s chair, David Spergel, with problems of imprecision and having information spread across different agencies. Those issues meant that it was difficult to provide conclusions on every reported UAP event. He called for better data and joined other panelists in arguing that it should become less stigmatised for people to come forward about their sightings. Numerous panelists said that there was a “stigma” about reporting such phenomena that made it difficult to fully examine what might be going on. The 16-member panel includes experts in everything from physics to astrobiology, and began its work last June. Wednesday’s session is the first public hearings by the group – which itself represents the first such inquiry into unidentified aerial phenomena by Nasa. The NASA study is separate from a newly formalized Pentagon-based investigation of unidentified aerial phenomena, or UAPs, documented in recent years by military aviators and analyzed by U.S. defense and intelligence officials. The parallel NASA and Pentagon efforts - both undertaken with some semblance of public scrutiny - highlight a turning point for the government after decades spent deflecting, debunking and discrediting sightings of unidentified flying objects, or UFOs, dating back to the 1940s. The term UFOs, long associated with notions of flying saucers and aliens, has been replaced in government parlance by “UAP.” While NASA‘s science mission was seen by some as promising a more open-minded approach to a topic long treated as taboo by the defense establishment, the U.S. space agency made it known from the start that it was hardly leaping to any conclusions. “There is no evidence UAPs are extraterrestrial in origin,” NASA said in announcing the panel’s formation last June. In its more recent statements, the agency presented a new potential wrinkle to the UAP acronym itself, referring to it as an abbreviation for “unidentified anomalous phenomena.” This suggested that sightings other than those that appeared airborne may be included. Still, NASA in announcing Wednesday’s meeting, said the space agency defines UAPs “as observations of events in the sky that cannot be identified as aircraft or known natural phenomena from a scientific perspective.” U.S. defense officials have said the Pentagon’s recent push to investigate such sightings has led to hundreds of new reports that are under examination, though most remain categorized as unexplained. The head of the Pentagon’s newly formed All-domain Anomaly Resolution Office (AARO) has said the existence of intelligent alien life has not been ruled out but that no sighting had produced evidence of extraterrestrial origins. Additional reporting by agencies Read More Nasa says Jeff Bezos will build moon lander to take astronauts to the Moon Opinion: The real reason companies are warning that AI is as bad as nuclear war Electric car drives for 100 hours non-stop on futuristic road Opinion: The real reason companies are warning that AI is as bad as nuclear war Electric car drives for 100 hours non-stop on futuristic road US and China ‘intertwined like conjoined twins,’ says Musk

Nearly 2,000 corporate workers at Amazon have pledged to walk off the job on Wednesday to signal a "lack of trust" in the company's leadership, in what could be the most visible sign of dissent among the e-commerce giant's office workers in recent memory.

American officials are negotiating a deal to help Turkmenistan curb its vast methane emissions, potentially sealing a major

Roller coasters are synonymous with a fun and exhilarating time at a theme park - but one artist has designed an "Euthanasia Coaster" that is specifically intended to kill its passengers. Julijonas Urbonasis is the man behind the 2010 project which has been described as a thought experiment or conceptual art. The "hypothetic death machine in the form of a roller coaster, engineered to humanely – with elegance and euphoria – take the life of a human being," according to his website. Sign up to our free Indy100 weekly newsletter How it works is that the sheer speed of the roller coaster along with number of loops would result in "oxygen deficiency in the brain," which would ultimately kill those who are on board the ride. So it appears, there's no chance of surviving the ride if you're on it. @criminologyandcoffee Would you ride the Euthanasia Coaster? #euthanasiacoaster #julijonasurbonas #rollercoaster However, there may be a way, according to Urbonas - with the Lithuanian artist explaining that it requires sporting some anti-gravity gear. "A possible usage is the 'hacked' thrill ride, which was suggested to me by an aeronautic engineer who happened to visit the coaster's scale model during an exhibition," he told LadBible back in 2021. "She said, 'Your machine could be hacked, you know.' "After my confusion, she explained, 'Using anti-g trousers that prevent pilots from blackout and fainting, I believe I would survive the ride and turn it into the most extreme thrill ride.'" While a scale model of the ride was built, according to Snopes but building the roller coaster in real life is not the aim for Urbonas - instead, the purpose of the design is "to convince the public that it can be built." "I have quite the list of people who would like to be scientific objects if the project would advance towards realisation. Most of them are elderly from the US. But I don’t want to go this far," Urbonas said in a 2018 interview with Arterritory Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

By Jane Lanhee Lee OAKLAND, California Lightmatter, a Boston-based startup using light for AI computing, said on Wednesday

Unpacking the reason hyperlinks are blue requires dipping into early internet history.

The prospect of Apple Inc.’s first new product category in nearly a decade could hardly be attracting less

An electric car has driven nearly 2,000km (1,250 miles) without stopping to charge as part of a demonstration of an electric road that wirelessly charges vehicles as they drive. Israeli startup Electreon claims the achievement is a new world record for the longest time and distance ever driven non-stop by a passenger electric vehicle (EV), taking just over 100 hours to cover 1,942 kilometres. The stunt was completed using a specially adapted Toyota RAV4, which drove in circles around a track fitted with Electreon’s Wireless Electric Road technology. The startup claims its tech can solve some of the fundamental challenges facing widespread EV adoption, including range anxiety, slow charge times and battery size. “The objective of this 100-hour non-stop driving rally was to demonstrate the unlimited technical potential of Wireless Electric Road technology to power EVs to drive indefinitely with a minimal battery,” said Reuven Rivlin, Electreon’s honorary president. “This is yet another clear signal that our Wireless Electric Road technology is ready for large-scale commercial projects globally.” The five-day drive involved 56 different drivers, with the vehicle only pausing momentarily to switch between drivers. Electreon plans to develop its wireless charging technology for vehicles alongside Toyota, having signed an agreement with the Japanese automotive giant in March. “This partnership will make wireless charging accessible to a diverse and wide range of drivers, and will demonstrate the many benefits of wireless charging as a cost-effective, clean solution for charging EVs, as well as a catalyst in reducing EVs’ carbon footprint,” Electreon chief executive Oren Ezer said at the time. Top-of-the-range electric vehicles in production currently have a range of just over 500km, though some prototypes have already passed the 1,000km mark. Last year, an electric Mercedes drove from Germany to the UK on a single charge, covering more than 1,200km. The Vision EQXX completed the record-breaking journey in just 15 hours, using a battery that has the same capacity as a Tesla Model S. The state-of-the-art is unlikely to ever go into mass production due to the costs of making it, however recent advances in battery technology could see the range of commercial electric vehicles rise significantly in the near future. A China-based battery startup announced earlier this month that it was aiming to become the first company in the world to mass produce electric vehicle batteries with a range of 1,000km thanks to an innovative lithium-manganese-iron-phosphate design. Other companies are also working on electrified roads for wireless or conductive charging, with Sweden unveiling plans to build around 3,000km of electric road by 2045. Read More Scientists break world record for solar power window material Electric car range set to double with first production of breakthrough battery Opinion: The real reason companies are warning that AI is as bad as nuclear war US and China ‘intertwined like conjoined twins,’ says Musk Huge ‘plume’ seen coming out of nearby moon that could support alien life

MBA grads say the investment in their degree was worth it, according to a 2022 survey by the Graduate Management Admission Council, an association of graduate business schools

LOS ANGELES--(BUSINESS WIRE)--May 31, 2023--