Affordable Superstrong Concrete for Bridges

Ultra-high performance concrete mixes cost $360-650 per cubic yard and have compressive strength from 22,500 PSI to 29000 PSI. There are proprietary makers of stronger concrete with costs of $2000 per cubic yard. There have been test blocks of concrete with strengths of 60000 PSI. Regular concrete is usually at 3000-5000 PSI compressive strength. The …

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AMD Leading Exascale Supercomputers with 2 Exaflop El Capitan Supercomputer in 2023

El Capitan will drive unprecedented advancements in HPC and AI, powered by the next-generation AMD EPYC CPUs and Radeon Instinct GPUs. It will be a 2 exaflop supercomputer for Lawrence Livermore Labs. It is expected in 2023 and is costing $600 million. This and the Frontier 1.5 exaflop supercomputer are huge victories for AMD. Intel …

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China Building Over 400 New Ultra-hardened Nuclear Silos

Satellite images taken by Planet and analyzed by the James Martin Center for Nonproliferation Studies at the Middlebury Institute of International Studies at Monterey (CNS/MIIS) show that China is significantly expanding the number of silos for its arsenal of intercontinental range-ballistic missiles. 120 silos under construction near Yumen were identified by Decker Eveleth, a former …

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Oakridge Frontier 1.5 Exaflop Supercomputer

Al Geist presented a history of the Exascale Project and How Frontier Solves the Four Exascale Challenges. This is part of the Advanced Technologies Section (ATS) series of the National Center for Computational Sciences at ORNL. Chip and Network vendors greatly improved the reliability of their systems to push this problem beyond the Exaflop scale. …

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Argonne National Lab Polaris Pre-Exascale Supercomputer

U.S. Department of Energy’s Argonne National Laboratory and Hewlett Packard Enterprise (NYSE: HPE) unveiled a new testbed supercomputer to prepare critical workloads for future exascale systems that will deliver up to four times faster performance than Argonne’s current supercomputers. Polaris will enable scientists and developers to test and optimize software codes and applications to tackle …

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South Lake Tahoe Evacuated

There were traffic jams throughout most of South Lake Tahoe Monday afternoon as the city is evacuated ahead of the Caldor Fire. 20,000 people live in South Lake Tahoe. There will be a red flag warning for gusting winds that are expected to last until 11 p.m. Wednesday. Highways 50, 88 and 89 all closed …

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Boeing 777 With Pratt & Whitney Engines Remain Grounded to 2022

Boeing 777 planes with Pratt and Whitney Engines will remain grounded until 2022. There are sixty-nine 777s with the Pratt & Whitney 4000-112 engines in service and another fifty-nine in storage. The Federal Aviation Administration (FAA) said Monday it is continuing to review Boeing 777-200 planes equipped with Pratt & Whitney (PW) engines like the …

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Varda Zero G Factories

Varda Space Industries is building the first commercial zero-gravity industrial park at scale. They plan to make large amounts of better drugs, semiconductors, fiber optic cable and other products in near zero-g. Varda has received $53M in venture funding from investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst and Also Capital. …

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Astra Loses an Engine But Still Flies

Astra had an attempted orbital rocket launch but they immediately lost an engine and flew sideways. The four engines only had enough thrust to hover but after they burned enough fuel they started climbing. They reached 47 kilometer altitude. They had 1.25 thrust to weight ratio but losing an engine immediately gave it 1.0 thrust …

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Jogging and Delivery Robots

The OSU Dynamic Robotics Laboratory’s research team, led by Agility Robotics’ Jonathan Hurst, combined expertise from biomechanics and robot controls with new machine learning tools to accomplish something new: train a bipedal robot to run a full 5K on a single battery charge. This was an industry-first. Cassie (2017-2019) was the previous robot of Agility …

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