nerd

26 Jul 2026

26 Jul 2026 2:55am GMT

An ESP32 based plane radar for my desk

Comments

26 Jul 2026 2:35am GMT

Show HN: I mapped every US golf course – 16k+ courses, free, no signup

Comments

26 Jul 2026 2:22am GMT

Slashdot

Firefox' New Tab Page Will Get Widgets - Including an AI-Powered Daily Crossword

In a sign of the times, Firefox's New Tab page could soon include a crossword puzzle from AI-powered news platform Particle. The blog OMG Ubuntu reports: The mini crossword game is updated daily, with puzzles based around recent content Particle's AI has ingested and summarised that day. [After solving the crossword, links appear to related news articles...] If you just want to try the crossword, you access it in any browser via a direct link. While it may look like Mozilla is trying to capitalise on the Wordle craze several years too late, it's part of its strategy to make the Firefox new tab page a discover destination in itself, not just a springboard for new searches. The 'Daily Grind' crossword widget (name subject to change) is just one of several widgets Firefox has (or will get). You'll also find a to-do list, timer, stock checker, world clock, picture of the day, privacy report and new-look weather widget (bigger than the existing one). During the World Cup 2026, Firefox offered real-time match scores and fixture information too... [T]hey aren't mandatory. You can disable the ones you don't want to use, or, if you don't want any at all, turn them all off to hide the widget area itself. A button to 'show fewer widgets' frees up room to allow other distractions (sponsored stories) on the new tab page to show... [Presumably you can also still open new tabs to a blank page...] They're rolling out to users in certain region and locales already. Plus, Mozilla routinely tests new features with a small set of users before they hit stable builds (i.e., the "Allow Firefox to run feature studies" setting). If you don't have widgets in your Firefox build, but you want them, you can manually enable them in Firefox 153 and later from the about:config page. Search for the following master switch and set it to true to enable the widget area: browser.newtabpage.activity-stream.widgets.system.enabled Then, enable the widgets you want to use by searching: activity-stream.widgets.*.enabled However, the usual caveats about "trying things not enabled by default" still apply. Mozilla hasn't set a firm rollout date, though the feature is already documented on its support site. With fortnightly Firefox releases about to start, and a big Nova redesign, chances are we'll all be puzzling over these widgets sooner rather than later.

25 Jul 2026

Slashdot

Did Virginia Regulators Downplay Data Center Health Concerns?

Politico reports that in the Virginia area alone there's dozens of data center projects "that altogether need 70 gigawatts of power - equivalent to 70 nuclear plants" - currently seeking connection to their grid. But there's also concerns about a Virginia data center powered with natural gas and backup diesel generators: When Virginia's top environmental regulator received an analysis warning of data center pollution, it took him less than five minutes to forward it to seven people on his staff... Internal emails obtained by POLITICO through a public records request paint a portrait of an agency that moved quickly to defend the only data center in Virginia that is powering itself - in what former officials and environmental health advocates described as an unusual effort to shape the debate around an industry whose global epicenter is in the state. The agency's pushback focused on the report's findings that the facility in Loudoun County could release harmful amounts of air pollution through eight bus-sized natural gas turbines - as allowed by permits granted by the Department of Environmental Quality [DEQ] itself... The request comes as data centers are devising new ways to produce their own power as a way to temper growing public discord over rising electricity prices amid the AI construction boom. Virginia has more than 600 data centers. The report [commissioned by Virginia's 54-year-old environmental nonprofit Piedmont Environmental Council] raised concerns that the data center's on-site power system, which also includes dozens of backup diesel generators, could cause tens of millions of dollars in health damages to people living around the facility, owned by Vantage Data Centers... [The analysis also argued the pollution could lead to 3.4 to 6.5 premature deaths annually.] People living near the Vantage facility in Sterling say its natural gas turbines produce constant noise and air pollution. The permits for Vantage issued by DEQ in 2023 allow cumulative emissions of seven different pollutants, including 95 tons per year of nitrogen oxides and more than 56 tons of soot. Both contribute to asthma and heart attacks. Those figures are in line with other state permits for minor sources of pollution, but DEQ's permits for Vantage have sparked local concerns because of the facility's location in a residential area... [Viriginia environmental quality officials] raised questions about whether the report wrongly described the facility's potential air pollution as dangerous, when soot levels in Loudoun County are deemed acceptable by America's Environmental Protection Agency (EPA). Health experts, including former EPA air quality official Michael Korber, told POLITICO that soot pollution can negatively affect human health even at EPA-approved levels. The World Health Organization's standard for ambient soot pollution is nearly half of what EPA suggests is safe. Some current and former staffers on Virginia's Department of Environmental Quality believe it's inappropriate for the agency to issue aggressive statements on the healthfulness of the data centers, with one former department leader saying Virginia's DEQ "is not the health department."

Drying Lakebeds Are Releasing Massive Amounts of Carbon, Study Finds

"In many parts of the world, lakes are drying out at a scale so massive that scientists are warning they may be emitting enough greenhouse gases to rival our fossil fuel habit," reports ScienceAlert: In a new study published in Science, scientists say the Aral Sea - the world's largest desiccated lake - has emitted a whopping 204 megatons (~225 million US tons) of carbon dioxide since it was drained in the 1960s... The study estimates that between 1960 and 2022, the evaporating sea has released 204 megatons of carbon dioxide into the atmosphere, based on site surveys and core samples collected from across the dry lakebed... The new study suggests that rehydrating the entire basin could come with enormous benefits to the environment, not just within the sea itself, but at a global level. "There is a hidden carbon treasure beneath the Aral Sea," says biochemist Rafael Marcé from the Spanish National Research Council. "If these sediments remain exposed, carbon will continue to be released into the atmosphere. If the sea is re-flooded, that same carbon could shift from being a source of emissions to becoming part of the climate solution." According to the researchers' calculations, re-flooding the lakebed could prevent the release of the estimated 165 megatons of carbon that remain. The study also revealed that nearly one-fifth of the Aral Sea's carbon emissions are actually being released as wind blows away sediment on the lakebed, a factor that researchers had not accounted for in the past. Thanks to Slashdot reader schwit1 for sharing the article.