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01 Sep 2026 12:12pm GMT

NASA's cost estimate for SR-1 Freedom is $2.1 billion, but that doesn't include the helicopters.

01 Sep 2026 11:00am GMT

California lawmakers have passed a bill that would legalize plug-in "balcony" solar systems, allowing residents to connect small solar panels directly to a standard wall outlet after completing a simple online registration. The systems would be capped at 1,200 watts and must meet safety requirements designed to prevent power from feeding back onto the grid during outages. KQED reports: The legislation, SB 868, sailed through the state assembly and senate with bipartisan support. The bill now moves to the governor's desk for signature. The devices can be tented in a backyard, hung off a balcony or placed on a roof. Models range from as low as $300 to $2200, depending on size. The bill would open the solar market to people who were previously left out: renters, people with unsuitable roofs, and those lacking the capital to build out a rooftop system, which can cost in the tens of thousands of dollars. [...] If signed into law by Newsom, the legislation would exempt plug-in solar devices from what critics say is a cumbersome and expensive interconnection application process, and replace registration with a free and straightforward online form. [...] The newly passed bill outlines several device requirements. The balcony solar systems must be capped at generating 1,200 watts per home, plug into a standard outlet, offset a customer's onsite electricity use and meet state and national electrical codes. They also must be certified by an outside safety organization like Underwriters Laboratories and have a feature that would prevent electricity from feeding back into the grid if there's a power outage.

Read more of this story at Slashdot.

01 Sep 2026 11:00am GMT

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01 Sep 2026 10:11am GMT

"We could really be facing the great filter."

01 Sep 2026 10:00am GMT

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01 Sep 2026 9:52am GMT

Researchers have found that tiny electrical charges picked up by moving water droplets may be damaging cars and buildings like the Eiffel Tower. In experiments, thousands of charged droplets degraded Teflon and corroded the copper beneath it, while uncharged droplets caused no comparable damage. C&EN reports: For years, researchers at the Max Planck Institute for Polymer Research have studied how water droplets from rain, dew, ocean waves, and melting snow become electrically charged. They say the process is like tribocharging, which causes static when we rub certain objects together, such as a balloon on our hair or a sweater on our skin. "Water drops spontaneously become electrically charged when moving on different surfaces, such as plant leaves, insect wings, building walls, window glass, and plastic. This process, known as contact or sliding electrification, is analogous to tribocharging between solids," says study coauthor Zhongyuan Ni, a PhD candidate at Max Planck. "Water drops getting charged is not a new phenomenon, but for the past 200 years, people have not paid attention to this," Ni says. In 2023, Ni and colleagues set out to determine whether electrically charged water droplets affect the surfaces they contact. To find out, the team poured water over four common surfaces -- a plant leaf; polyvinyl chloride foam board; polystyrene glass; and perfluoro octadecyltrichlorosilane (PFOTS), a commonly used water-repelling coating -- and let it drip onto sheets of Teflon-coated copper tilted at 50 degrees. When the experiments began, the team would allow only a few dozen drops to fall onto the copper before using electron microscopy to examine it. The researchers repeatedly failed to find any evidence of decay. But one day, Ni just let the drops keep falling. "After thousands of drops, it looked like the drops were pinning onto the surface," he says. After inspecting the copper under the microscope, Ni got his first glimpse of the destructive strength of electrically charged water drops. After repeating the experiment several times with thousands rather than dozens of drops, the researchers found that the electrified water drops not only broke down the Teflon coating but also corroded the underlying copper. Up close, the copper sheets looked like scraped-up skin. But when the experiment was conducted with nonelectrified drops, neither the copper nor its Teflon coating was any worse for wear. Even though the drops contained only around 0.2 to 2.0 nanocoulombs of charge -- around one billionth of a standard unit -- the impact of the charged drops was significant. "The finding is important because it suggests that the electrical state of a water droplet, not just its chemical composition, acidity, or mechanical impact, can influence how corrosion begins," says Guangwen Zhou, a professor of mechanical engineering at Binghamton University who was not involved in the study. "This perspective could open up new approaches to designing protective coatings and materials that are more resistant to corrosion in environments where charged water droplets are present."

Read more of this story at Slashdot.

01 Sep 2026 7:00am GMT

An anonymous reader quotes a report from Ars Technica: President Trump yesterday demanded that the Federal Communications Commission punish or rebuke an NBC journalist for saying he has "mixed results" in his election endorsements. In the latest example of how Trump is using the FCC to harass reporters and news organizations that he dislikes, he said Meet the Press host Kristen Welker "will be reported to the FCC for rebuke or punishment" for what he claimed was a "purposeful inaccuracy." "Kristen Welker, the Unpopular 'Hostess' of the once great Meet the Press, now considered Meet the Fake Press, just stated that Donald Trump has 'mixed results' on his Endorsements of Candidates, when the recent WINS of Darline Graham and Mike Mazzei, stand at 100% for the U.S. Senate, and 98% for the U.S. House, recently and over the longterm. How can anyone be allowed to say this, working for freely given Public Airwaves? Results are attached. Because of this purposeful inaccuracy, she will be reported to the FCC for rebuke or punishment," Trump wrote in a Truth Social post. A separate post from Trump yesterday said, "THE FAKE POLLS USED BY OUR CROOKED MEDIA ARE OUT OF CONTROL, AND SOMETHING MUST BE DONE ABOUT IT. FCC TO THE RESCUE! President DJT." Trump also posted a rant on Friday about New York Times journalist Maggie Haberman, calling her "an unattractive person both inside and out" who "should be forced to turn over any and all money that she's made through her fake reporting on me." Trump referred to Haberman throughout his post as "Maggot Haberman." Trump's post about Welker included an image purporting to show he has near-perfect results in his endorsements this year. "The Press is a Disgrace to our Nation, and I hope that Chairman Brendan Carr, and the fine people of his Commission, will take this Threat to our Country very seriously," Trump wrote. Perhaps indicating that he will refer additional journalists for FCC punishment, Trump wrote that Welker "is not the only one. The Radical Left News is going out of their way to harass, demean, and libel anything 'TRUMP.'" The FCC website says the commission "cannot prevent the broadcast of any particular point of view," and that it "generally will not intervene" in complaints about "one-sided news reports" because "it would be inconsistent with the First Amendment to replace the journalistic judgment of licensees with our own." As noted by Ars, FCC Chairman Brendan Carr has "made it clear he takes orders from Trump, abandoning his previous position -- which he held under Democratic presidents -- that the FCC must operate independently of White House interference." Carr could use the commission's regulatory authority over licensed broadcasters to open an investigation into Welker, potentially creating pressure on NBC and its affiliated stations through licensing proceedings or other FCC actions. The most likely vehicle would be the FCC's rarely enforced news distortion policy, which Carr has repeatedly revived to target coverage he considers misleading; historically, however, the policy required an unusually high evidentiary bar and was seldom enforced.

Read more of this story at Slashdot.

01 Sep 2026 3:30am GMT

It's the lightest Bentley in 85 years.

31 Aug 2026 11:01pm GMT

The latest uutils Coreutils release speeds up cp and join, introduces modern diagnostics, and pushes GNU compatibility past 95%.

31 Aug 2026 8:59pm GMT

Kdenlive 26.08 is out with long-awaited track reordering, multi-clip speed controls, automatic audio track creation, and 11 crash fixes.

31 Aug 2026 7:19pm GMT

Mozilla Firefox 155 adds faster connections, visible tracker-blocking counts, reorderable containers, and several important Linux fixes.

31 Aug 2026 6:50pm GMT