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The collapse of the Atlantic Meridional Overturning Circulation would trigger cooling and ...

We could see early warning signs of the collapse of a key component of the global climate up to 250 years in advance, a new study has shown – ample time to either prevent or prepare for the consequences of abrupt climate change. The University of Exeter study analyzed the Atlantic Meridional Overturning Circulation (AMOC), sometimes referred to as the global ocean conveyor belt, in a highly-complex and realistic simulation model, and identified the likely mechanisms that would drive such a collapse.  Read More

A high-resolution simulation of the global climate provides a much better representation o...

High-resolution simulations of the global climate can now perform much closer to actual observations, and they perform far better at reproducing extreme weather events, a new Berkeley Lab study has found. Lead author Michael Wehner heralds this news as evidence of a golden age in climate modeling, as not only did the simulation closer match reality but it also took a fraction as long to complete as it would have in recent history – just three months compared to several years.  Read More

The W88 ALT 370 warhead was dropped from a crane to simulate a loading accident

Dropping a nuclear warhead may not seem like a particularly bright idea, but earlier this year Sandia National Laboratories did just that. As part of the US government’s Life Extension Program (LEP) for its nuclear arsenal, the inert W88 ALT 370 warhead was dropped from a crane in New Mexico onto a slab of concrete to test the updated design’s safety.  Read More

Spa's Blanchimont and Eau Rouge

With the release candidate of Assetto Corsa available on Steam Early Access, DK2 support heading to iRacing in the next week or two, and Project Cars (again with DK2 support) due in late November, Christmas is arriving early for sim racers. Read on for our impressions of Assetto Corsa with the Oculus Rift DK2 after putting in a few laps of Circuit de Spa-Francorchamps in the P4/5 Competizione.  Read More

LLNL researchers are working to improve 3D metal printing using higher-powered lasers

To paraphrase Samuel Johnson, there was a time when 3D metal printing was like a dog walking on his hind legs – it wasn't done well; but you were surprised to find it done at all. Now that laser sintering or Selective Laser Melting (SLM) is used for everything from printing rocket engine components to semi-automatic pistols, the time for surprise may b long past, but the technology still has plenty of room for improvement. That's why researchers at the Lawrence Livermore National Laboratory (LLNL) are working on simulations to improve the speed of 3D laser printing and the quality of the final product by using higher-powered lasers.  Read More

Illustris simulation still frame centered on the most massive galaxy cluster existing toda...

As you might expect, the scale and complexities of the underlying physics means creating a realistic virtual universe would require some hefty computing power. A team of astronomers is claiming to have achieved this impressive feat using a computer simulation called "Illustris," which took five years to program and, for the first time, can recreate the evolution of the Universe in high fidelity.  Read More

Artist's impression of the live synthetic simulation system (image: US Army/Peggy Frierson...

Modern warfare is sometimes compared to a video game, but within ten years combat training may become the most realistic video game imaginable. The US Army’s Future Holistic Training Environment Live Synthetic program is a new approach to combat training that integrates various simulations into a single, remotely accessible system. Used on bases across the country, its goal is to provide the Pentagon with a cheaper, more effective way of training soldiers for future military operations.  Read More

Virtual simulation image of the sun atop the obelisk with the Altar of Peace in the foregr...

Campus Martius, also known as the Campus of Mars, was built by the Roman Senate just outside the ancient Rome city walls back in 9 BCE. It was built to celebrate the peace brought upon the Roman people as a result of Emperor Agustus’s military conquests. Thanks to a complex computer simulation created by the Institute for Digital Intermedia Arts (IDIA) for Indiana University's School of Informatics and Computing, it is now possible to verify if and how solar alignments influenced the positioning of the different objects on site.  Read More

Astrophoto in redshifted Lyman-alpha light, possibly emitted by a cosmic filament of gas a...

That the Universe is largely composed of a cosmic web consisting of narrow filaments upon which galaxies and intergalactic gas and dust are concentrated has been known for more than a decade. While a great deal of evidence for this has accumulated, visual evidence has been difficult to find. Astronomers have now photographed what appears to be a segment of a cosmic filament stimulated into fluorescence by irradiation from a nearby quasar.  Read More

Controlling virtual arms and hands with the minds could help stroke patient rehabilitation...

Earlier this year, we saw an amazing demonstration of an EEG skullcap interface that allowed a quadcopter to be controlled with only thoughts. Now the same technology is pioneering a medical therapy in which stroke patients can use their thoughts to guide a simulation, and thus rebuild damaged neurons. As the “virtual reality hands” provide customization and direct feedback of one’s progress, this could be an improvement over traditional therapy methods.  Read More

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