About Half of Global Wastewater Is Treated, Instead of Previous Estimate of 20%, Study Finds

schwit1 shares a report from UPI: The study published Monday in the journal Earth System Science Data, estimated 359 billion cubic meters of wastewater is produced each year — which is “equivalent to 144 million Olympic-sized swimming pools,” Edward Jones, a doctoral researcher at Utrecht University and the study’s lead author, said in a statement. Researchers found that 52% of that…

Tomorrow is New Year’s Day on Mars

Mars Year 36 begins on February 7, 2021. If you’re looking for a reason to celebrate, here’s to a Happy New Year … on Mars. Source: https://earthsky.org/astronomy-essentials/mars-calendar-years-began-in-earth-year-1955…

Galaxy-Size Gravitational-Wave Detector Hints At Exotic Physics

The fabric of spacetime may be frothing with gigantic gravitational waves, and the possibility has sent physicists into a tizzy. A potential signal seen in the light from dead stellar cores known as pulsars has driven a flurry of theoretical papers speculating about exotic explanations. Scientific American reports: The most mundane, yet still quite sensational, possibility is that researchers working with…

When will Betelgeuse explode?

The red supergiant star will explode in a supernova, close enough to shine brightly during the day but far enough away that Earth won’t be in danger. Source: https://earthsky.org/brightest-stars/betelgeuse-will-explode-someday…

New Study: A Zero-Emissions America is Now Pretty Cheap

“Until recently, it was unclear whether variable renewable energy, nuclear, or fossil fuel with carbon capture and storage would become the main form of generation in a decarbonized electricity system,” argues a recently-published analysis titled Carbon-Neutral Pathways for the United States. “The cost decline of variable renewable energy over the last few years, however, has definitively changed the situation.” Ars Technica…

With New User-Defined Functions, Microsoft Excel is Now Turing Complete

Visual Studio Magazine reports: Microsoft, which calls its Excel spreadsheet a programming language, reports that an effort called LAMBDA to make it even more of a programming language is paying off, recently being deemed Turing complete. Being Turing complete is the litmus test of a full-fledged programming language, marking the ability to imitate a Turing machine. According to one definition, that…

A giant undersea sand worm’s fossilized lair

In 20-million-=year-old rock off the coast of Taiwan, researchers have discovered what they think is the fossilized burrow of a giant, predatory sand worm. Source: https://earthsky.org/earth/scientists-find-evidence-of-giant-predatory-sand-worms…

Twitter Bots Are a Major Source of Climate Disinformation

An anonymous reader quotes a report from Scientific American: Twitter accounts run by machines are a major source of climate change disinformation that might drain support from policies to address rising temperatures. In the weeks surrounding former President Trump’s announcement about withdrawing from the Paris Agreement, accounts suspected of being bots accounted for roughly a quarter of all tweets about climate…

Jamie Zawinski Calls Cinnamon Screensaver Lock-Bypass Bug ‘Unconscionable’

Legendary programmer Jamie Zawinski has worked on everything from the earliest releases of the Netscape Navigator browser to XEmacs, Mozilla, and, of course, the XScreenSaver project. Now Slashdot reader e432776 writes: JWZ continues to track issues with screensavers on Linux (since 2004!), and discusses a new bug in cinnamon-screensaver. Long-standing topics like X11, developer interaction, and code licensing all feature. Solutions…

Calculations Show It’ll Be Impossible To Control a Super-Intelligent AI

schwit1 shares a report from ScienceAlert: [S]cientists have just delivered their verdict on whether we’d be able to control a high-level computer super-intelligence. The answer? Almost definitely not. The catch is that controlling a super-intelligence far beyond human comprehension would require a simulation of that super-intelligence which we can analyze. But if we’re unable to comprehend it, it’s impossible to create…