Saturday, July 26th, 2025

Time	Event
3:30a	Google Set Up Two Robotic Arms For a Game of Infinite Table Tennis An anonymous reader quotes a report from Popular Science: On the early evening of June 22, 2010, American tennis star John Isner began a grueling Wimbledon match against Frenchman Nicolas Mahut that would become the longest in the sport's history. The marathon battle lasted 11 hours and stretched across three consecutive days. Though Isner ultimately prevailed 70-68 in the fifth set, some in attendance half-jokingly wondered at the time whether the two men might be trapped on that court for eternity. A similarly endless-seeming skirmish of rackets is currently unfolding just an hour's drive south of the All England Club -- at Google DeepMind. Known for pioneering AI models that have outperformed the best human players at chess and Go, DeepMind now has a pair of robotic arms engaged in a kind of infinite game of table tennis. The goal of this ongoing research project, which began in 2022, is for the two robots to continuously learn from each other through competition. Just as Isner eventually adapted his game to beat Mahut, each robotic arm uses AI models to shift strategies and improve. But unlike the Wimbledon example, there's no final score the robots can reach to end their slugfest. Instead, they continue to compete indefinitely, with the aim of improving at every swing along the way. And while the robotic arms are easily beaten by advanced human players, they've been shown to dominate beginners. Against intermediate players, the robots have roughly 50/50 odds -- placing them, according to researchers, at a level of "solidly amateur human performance." All of this, as two researchers involved noted this week in an IEEE Spectrum blog, is being done in hopes of creating an advanced, general-purpose AI model that could serve as the "brains" of humanoid robots that may one day interact with people in real-world factories, homes, and beyond. Researchers at DeepMind and elsewhere are hopeful that this learning method, if scaled up, could spark a "ChatGPT moment" for robotics -- fast-tracking the field from stumbling, awkward hunks of metal to truly useful assistants. "We are optimistic that continued research in this direction will lead to more capable, adaptable machines that can learn the diverse skills needed to operate effectively and safely in our unstructured world," DeepMind senior staff engineer Pannag Sanketi and Arizona State University Professor Heni Ben Amor write in IEEE Spectrum. Read more of this story at Slashdot. (Comment on this)
8:34p	Stack Exchange Moves Everything to the Cloud, Destroys Servers in New Jersey Since 2010 Stack Exchange has run all its sites on physical hardware in New Jersey — about 50 different servers. (When Ryan Donovan joined in 2019, "I saw the original server mounted on a wall with a laudatory plaque like a beloved pet.") But this month everything moved to the cloud, a new blog post explains. "Our servers are now cattle, not pets. Nobody is going to have to drive to our New Jersey data center and replace or reboot hardware..." Over the years, we've shared glamor shots of our server racks and info about updating them. For almost our entire 16-year existence, the SRE team has managed all datacenter operations, including the physical servers, cabling, racking, replacing failed disks and everything else in between. This work required someone to physically show up at the datacenter and poke the machines... [O]n July 2nd, in anticipation of the datacenter's closure, we unracked all the servers, unplugged all the cables, and gave these once mighty machines their final curtain call... We moved Stack Overflow for Teams to Azure in 2023 and proved we could do it. Now we just had to tackle the public sites (Stack Overflow and the Stack Exchange network), which is hosted on Google Cloud. Early last year, our datacenter vendor in New Jersey decided to shut down that location, and we needed to be out by July 2025. Our other datacenter — in Colorado — was decommissioned in June. It was primarily for disaster recovery, which we didn't need any more. Stack Overflow no longer has any physical datacenters or offices; we are fully in the cloud and remote...! [O]ur Staff Site Reliability Engineer, got a little wistful. "I installed the new web tier servers a few years ago as part of planned upgrades," he said. "It's bittersweet that I'm the one deracking them also." It's the IT version of Old Yeller. There's photos of the 50 servers, as well as the 400+ cables connecting them, all of which wound up in a junk pile. "For security reasons (and to protect the PII of all our users and customers), everything was being shredded and/or destroyed. Nothing was being kept... Ever have difficulty disconnecting an RJ45 cable? Well, here was our opportunity to just cut the damn things off instead of figuring out why the little tab wouldn't release the plug." Read more of this story at Slashdot. (Comment on this)
9:34p	Google Will Help Scale 'Long-Duration Energy Storage' Solution for Clean Power "Google has signed its first partnership with a long-duration energy storage company," reports Data Center Dynamics. "The tech giant signed a long-term partnership with Energy Dome to support multiple commercial deployments worldwide to help scale the company's CO2 battery technology." Google explains in a blog post that the company's technology "can store excess clean energy and then dispatch it back to the grid for 8-24 hours, bridging the gap between when renewable energy is generated and when it is needed." Reuters explains the technology: Energy Dome's CO2-based system stores energy by compressing and liquefying carbon dioxide, which is later expanded to generate electricity. The technology avoids the use of scarce raw materials such as lithium and copper, making it potentially attractive to European policymakers seeking to reduce reliance on critical minerals and bolster energy security. "Unlike other gases, CO2 can be compressed at ambient temperatures, eliminating the need for expensive cryogenic features," notes CleanTechnica, calling this "a unique new threat to fossil fuel power plants." Google's move "means that more wind and solar energy than ever before can be put to use in local grids," Pumped storage hydropower still accounts for more than 90% of utility scale storage in the US, long duration or otherwise... Energy Dome claims to beat lithium-ion batteries by a wide margin, currently aiming for a duration of 8-24 hours. The company aims to hit the 10-hour mark with its first project in the U.S., the "Columbia Energy Storage Project" under the wing of the gas and electricity supplier Alliant Energy to be located in Pacific, Wisconsin... [B]ut apparently Google has already seen more than enough. An Energy Dome demonstration project has been shooting electricity into the grid in Italy for more than three years, and the company recently launched a new 20-megawatt commercial plant in Sardinia. Google points out this is one of several Google clean energy initiatives: In June Google signed the largest direct corporate offtake agreement for fusion energy with Commonwealth Fusion Systems. In October Google agreed to purchase "advanced nuclear" power from multiple small modular reactors being developed by Kairos Power. Google also partnered with a clean-energy startup to develop a geothermal power project that contributes carbon-free energy to the electric grid. Read more of this story at Slashdot. (Comment on this)

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