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The United States and Europe are drawing up a voluntary code of conduct for artificial intelligence, with a draft expected in weeks

REDMOND, Wash.--(BUSINESS WIRE)--May 31, 2023--

A Fidelity fund has slashed its estimate of Twitter's value amid ongoing chaos at the company, implying the social media platform may be worth only a third of its value compared to when Elon Musk acquired it in October.

By Francois Murphy VIENNA The U.N. nuclear watchdog has re-installed only some monitoring equipment originally put in place

A team of Earth scientists first introduced the concept “planetary boundaries” almost 15 years ago to identify major

Nvidia Corp. Chief Executive Officer Jensen Huang is heading to China to meet with tech executives in the

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--

FAIRFAX, Va.--(BUSINESS WIRE)--May 31, 2023--

SAN FRANCISCO--(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

NEW HYDE PARK, N.Y.--(BUSINESS WIRE)--May 31, 2023--