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Submission + - SPAM: Hidden Impacts of Ferocious Volcanic Eruption Finally Revealed

schwit1 writes: Undersea volcanic eruptions account for more than three-quarters of all volcanism on Earth, but rarely do we see the impacts.

The Hunga Tonga-Hunga Ha’apai eruption of 2022 was a dramatic exception. Its furious explosion from shallow waters broke the ocean surface and punched through the stratosphere, generating supercharged lighting and an atmospheric shock wave that circled the globe several times. . . .

Their analyses show at least 6 cubic kilometers (km3) of seafloor was lost from within the caldera – 20 times the eruptive volume of the 1980 Mount St. Helens eruption – and an additional 3.5 km3 of material was blasted out of the Hunga volcano’s submerged flanks.

To put that in perspective, previous studies of the Hunga Tonga-Hunga Ha’apai eruption estimated that 1.9 km3 (or 2,900 megatonnes) of material was ejected into the atmosphere.

That leaves roughly four-fifths of the ejected material in the ocean; material that was funneled into fast-moving density flows that scoured out tracks 30 meters deep in the seafloor and accumulated 22 meters (72 feet) thick in some places.

Link to Original Source

Submission + - ISS Tomato finally found (gizmodo.com)

christoban writes: The fate of a lost tomato on the International Space Station has been found, finally, after being somehow lost for 8 months. Surprisingly, no one ate it.

Comment Re: No Dreamworks? (Score 1) 45

DW is a happy consumer of USD and are likely represented on the entertainment industry advisory committee. Apple has been developing USD based authoring tools for several years. The company most negatively affected is probably Meta. They've been pushing a proprietary 3D format to become the standard for VR/AR/Web3d. This alliance basically torches that misguided effort.

Comment Re:OpenStreetMaps vs this unholly alliance (Score 2) 59

Throwing support behind OpenStreetMap would be the logical, moral, and smart business move

YES. These corporate map apps will mine our most sensitive details and ultimately serve up a nonstop stream of geolocated ads. Look at the shitshow Google Maps has become. Maybe it's time to finally move to Apple Maps.

Submission + - The IBM mainframe: How it runs and why it survives (arstechnica.com) 2

AndrewZX writes: Mainframe computers are often seen as ancient machines—practically dinosaurs. But mainframes, which are purpose-built to process enormous amounts of data, are still extremely relevant today. If they’re dinosaurs, they’re T-Rexes, and desktops and server computers are puny mammals to be trodden underfoot.

It’s estimated that there are 10,000 mainframes in use today. They’re used almost exclusively by the largest companies in the world, including two-thirds of Fortune 500 companies, 45 of the world’s top 50 banks, eight of the top 10 insurers, seven of the top 10 global retailers, and eight of the top 10 telecommunications companies. And most of those mainframes come from IBM.

In this explainer, we’ll look at the IBM mainframe computer—what it is, how it works, and why it’s still going strong after over 50 years.

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