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What looks like a server boiling underwater is actually one of the most advanced cooling technologies used in modern computing This demonstration showcases a two-phase immersion cooling system, a method increasingly explored for high-performance computing and AI infrastructure where traditional air cooling becomes less efficient. Instead of using fans...

105,537 次观看 • 2 个月前 •via X (Twitter)

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Satya Nadella: Microsoft’s latest Wisconsin AI data center keeps yearly water consumption no higher than that of 1 local restaurant. "The cooling loop is filled once and the data centre can operate effectively with zero water consumption. Daily water usage across a year is roughly equivalent to what a single restaurant would use" The mechanism is mainly about replacing evaporative cooling with closed-loop direct-to-chip liquid cooling, so water moves like coolant inside a sealed machine rather than being boiled off into the air. Hot GB200-class AI racks produce too much heat for normal air cooling, so cold liquid is pushed through pipes into the servers and across metal cold plates touching the hottest chips. The liquid enters the rack cool, absorbs heat from the chips through cold plates, then exits the rack at a higher temperature and carries that heat through pipes to a huge cooling system outside the compute floor. Microsoft says Fairwater sends that hot water to cooling “fins” beside the datacenter, where 172 20-foot fans blow air across the fins and dump the heat into the outside air. The important detail is that the air cools the water through metal surfaces, so the water does not need to evaporate the way many older datacenters use cooling towers. The cooled liquid then returns to the servers, repeats the loop, and keeps absorbing heat from the chips. In older data centers, heat is often removed partly through cooling towers. Hot water meets moving air, some water evaporates, and that phase change carries heat away. Effective, but it consumes fresh water continuously. But Firwater is a closed loop because the same coolant keeps circulating through sealed pipes: it absorbs heat from the chips, releases that heat through radiator-like fins, then flows back to the chips again. For Wisconsin Fairwater, Microsoft says more than 90% of the facility uses closed-loop liquid cooling, while the remaining portion uses outside air and switches to water only on the hottest days. ---- From "Microsoft" YouTube channel, (link in comment)

Rohan Paul

28,510 次观看 • 2 个月前

This looks like a regular IT server room. But it is actually the main avionics compartment of an Airbus A350, a rare view into what sits at the very front of the aircraft, directly beneath the cockpit floor. Inside are 22 purpose built computing modules made by Thales, each costing more than $100,000+ They host multiple aircraft systems, processing everything from flight controls and landing gear to hydraulics, fuel, electrical systems and flight warnings. All of them are connected through a dual redundants AFDX network, with 14 switches and 29 remote data concentrators distributed throughout the aircraft. Keeping this computing architecture running requires an estimated 50-60+ kW of electrical power. The electricity keeping all of this computing hardware alive is generated in real time from the aircraft's two engines. Each engine mechanically drives two generators through its accessory gearbox, giving the A350 four generators capable of producing up to 100 kVA each. That electricity then flows through the aircraft's power network, where transformers and rectifiers convert it into the different AC and 28 V DC supplies the avionics need. And if those generators fail, the aircraft has layers of backup power, including the APU and, in an extreme emergency, a ram air turbine that deploys automatically if all systems fail. The A350 has two independent avionics cooling circuits, heat extraction fans and backup airflow paths to keep the computers within their operating limits. So the next time you hear the word autopilot, remember what it really takes to make an Airbus A350 fly itself, An entire architecture of computers, networks, redundant power and cooling, hidden beneath the floor where no passenger ever sees it. Source, maintenancemode

Ammanichanda

66,935 次观看 • 9 天前

🚨 SOUTH KOREAN SCIENTISTS JUST CREATED HOLLOW SILICON NANOTUBES THAT TRAP HEAT AND TURN WASTE ENERGY INTO ELECTRICITY. Researchers at POSTECH have developed a new hollow silicon nanotube structure that dramatically reduces thermal conductivity. By turning solid nanowires into microscopic pipes, they trapped heat-carrying particles (phonons) inside the tubes, cutting thermal conductivity by 70% compared to solid wires. Even when both structures had the same surface area, the hollow nanotubes still ran 33% cooler. This phonon localization effect previously thought to require extreme cold or exotic materials was achieved at near-room temperature using simple silicon nanotubes. Why this matters: • Waste heat from data centers, EV batteries, factories, and electronics is currently lost this could capture and convert it into usable electricity • The technology uses abundant, cheap silicon instead of rare and expensive materials like bismuth and tellurium • It’s highly compatible with existing semiconductor manufacturing, making large-scale production more realistic • It solves a long-standing problem: silicon is great for chips but terrible for thermoelectric energy conversion The deeper implication: This breakthrough shows that clever nanoscale engineering can unlock new capabilities from ordinary materials. By controlling how heat moves at the atomic level, researchers are opening a path to more efficient energy recovery systems without relying on scarce resources. As AI and computing power keep growing, finding ways to recycle the massive amounts of waste heat they generate will become increasingly important. How significant do you think waste-heat recovery technologies like this could become in the next decade? Follow for more frontier materials science and energy innovation.

TheNewPhysics

25,739 次观看 • 2 个月前

🚨 IMPOSSIBLE MATERIALS Scientists may have just discovered the next generation of magnetic technology. And it’s neither a normal magnet… nor a normal non-magnet. Researchers at the University of Tokyo are developing something called: “Altermagnets.” A completely new class of magnetic material. Traditional electronics rely on two known magnetic states: • ferromagnets • antiferromagnets But altermagnets behave differently. They combine properties of both. That means they could potentially deliver: • ultra-fast memory • ultra-low power electronics • high-density information storage • next-generation spintronic computing without many of the limitations current magnetic systems face. The deeper shift: Modern computing has largely been built around moving electrical charge. But the future may revolve around controlling electron spin itself. That changes everything. Researchers say these materials generate powerful internal “emergent” electromagnetic effects caused by the geometry of the material itself. Meaning: The structure of matter begins controlling electrons in entirely new ways. If this scales: • future computers become dramatically more energy efficient • magnetic memory becomes faster and denser • spin-based computing could rival conventional chips • entirely new forms of quantum electronics may emerge This is why some physicists are calling altermagnets the “third class” of magnetic material. Because they may open an entirely new branch of information technology. Question to audience: If future computers stop relying mainly on electrical charge… and start computing through electron spin geometry instead… does computing itself fundamentally change? Follow for more future physics before it hits mainstream. #ImpossibleMaterials #TheNewPhysics #QuantumMaterials #Spintronics #FutureInfrastructure

TheNewPhysics

22,535 次观看 • 3 个月前

This looks like a simple transparent shock absorber filled with oil. But what you are seeing is one of the most destructive phenomena in fluid engineering. This is cavitation in its true form. The white cloud forming beneath the piston is not foam and it is not air. The oil is literally changing from liquid to vapour at room temperature. When the piston moves rapidly, the oil is forced through tiny passages inside the damper. The fluid velocity increases, the local pressure drops, and if it falls below the oil's vapour pressure, the liquid begins to boil without any increase in temperature. The moment the pressure recovers, those microscopic vapour bubbles collapse almost instantly. And that is where the real damage begins. The destructive forces of cavitation is really not understood well by most. A collapsing cavitation bubble creates shockwaves and high-speed microjets that strike nearby surfaces with enormous local forces. Repeated millions of times, these tiny implosions can slowly eat away hardened metals, destroy precision components and reduce the lifespan of expensive machinery across industries. This same invisible phenomenon is one of the biggest challenges in naval engineering. Ship propellers operating under enormous loads can suffer cavitation erosion, losing efficiency while creating underwater noise. For advanced stealth submarines, that noise can become a major problem because cavitation can reveal their position. Decades of research have gone into specialised propeller designs, pump-jets, surface finishes and hydrodynamic optimisation to delay its formation. The same issues affects hydroelectric turbines that convert the energy of entire rivers into electricity, and industrial pumps that move oil, chemicals and water through critical infrastructure around the world. Perhaps the most remarkable part is that after 4-5 decades of advances in metallurgy, coatings and manufacturing, engineers still cannot simply build a material that is immune to cavitation. The solution is not to make stronger metals forever. It is to understand the fluid dynamics so precisely that cavitation is prevented before in those destructive bubbles ever form.

Ammanichanda

1,187,907 次观看 • 29 天前

🚨 ITALY IS ABOUT TO GENERATE ELECTRICITY FROM A FULL-SCALE NUCLEAR REACTOR THAT HAS ZERO NUCLEAR FUEL INSIDE IT. At the ENEA Brasimone research center, Newcleo has installed a 155-ton reactor vessel filled with molten lead. Instead of uranium, it uses electric heaters to simulate the heat from fission. The lead will circulate, transfer heat to a steam generator, and spin a real turbine to produce electricity. This is not a small lab experiment. The vessel is nearly the same size as the commercial 200 MW lead-cooled reactor Newcleo eventually wants to sell. Why this matters: • It’s one of the most complete non-nuclear demonstrations of a next-generation reactor ever attempted • By proving the molten lead cooling system, heat exchangers, and power conversion loop work at scale before introducing nuclear fuel, Newcleo is trying to de-risk the hardest and most expensive parts of advanced nuclear development • Lead-cooled fast reactors can operate at atmospheric pressure with high thermal margins and natural circulation decay heat removal • The company has ambitious plans, including partnerships in the US (with Oklo) to use surplus weapons plutonium as fuel The deeper implication: Traditional nuclear development is extremely slow and expensive because you have to deal with radiation, fuel, and regulatory scrutiny from day one. Newcleo’s approach flips this: prove the entire non-nuclear “machine” works first at near-commercial scale, then add the nuclear part later. If successful, this could meaningfully shorten development timelines and reduce technical risk for lead-cooled reactors. It’s still early the real fueled reactor isn’t expected until the early 2030s but this is one of the more serious and well-funded attempts to make a new type of advanced nuclear a commercial reality. How important do you think non-nuclear full-scale testing like this will be for accelerating advanced reactor deployment? Follow for more frontier nuclear technology and next-generation reactor development.

TheNewPhysics

256,933 次观看 • 2 个月前

🚨 SCIENTISTS JUST BUILT A CHIP THAT CAN SEE, THINK, AND REMEMBER ALL AT THE SAME TIME. And it works more like a biological brain than a traditional computer. Researchers at RMIT University have created a neuromorphic vision chip that mimics the human eye and brain. Unlike conventional systems that capture images and send data to external processors, this chip performs sensing, processing, and memory storage directly where the light hits. The active layer is thousands of times thinner than a human hair. It uses doped indium oxide to detect light, process the information on-chip, and retain what it sees over time without constant electrical refreshing. Why this matters: • It dramatically cuts energy use and latency by eliminating data transfer to separate processors • Enables much faster real-time decision making for autonomous systems • Works more like biological vision than traditional machine vision • Could power the next generation of efficient edge AI in vehicles, robots, and remote sensors The deeper implication: For decades, we’ve built vision systems by bolting cameras, processors, and memory together like separate organs. This chip collapses those functions into one biological-style unit. It’s a step toward machines that don’t just “see” but actually perceive and remember in a more efficient, brain-like way. If scaled successfully, it could become a foundational component for autonomous systems that need to operate intelligently with minimal power and minimal delay. We’re moving from cameras that take pictures to chips that truly see. How do you think neuromorphic vision chips like this will change what’s possible for self-driving cars and autonomous robots? Follow for more frontier neuromorphic computing, AI hardware, and brain-inspired technology.

TheNewPhysics

23,196 次观看 • 2 个月前