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Archive for the ‘military’ category: Page 39

Aug 15, 2023

DART asteroid-smashing spacecraft broke off 37 boulders that now have atomic bomb energy

Posted by in categories: energy, military, space

Last year, NASA undertook its first planetary defense mission with the Double Asteroid Redirection Test (DART). The goal was to divert the moonlet Dimorphos from its orbit, demonstrating that an asteroid could be redirected in the case of a catastrophic course toward Earth.

The spacecraft’s impact, while altering the moonlet’s orbit, also resulted in the dispersal of 37 boulders from its surface. Some of these space rocks are as wide as 22 feet off its surface.

The DART mission was watched intently across the globe on September 26, 2022. The spacecraft successfully shifted Dimorphos’s orbit from an original 11 hours and 55 minutes to 11 hours and 23 minutes post-impact.

Aug 14, 2023

How to Survive a Nuclear War: Study Reveals the Safest Places to Wait Out the Conflict

Posted by in categories: existential risks, food, military

New research indicates that Australia and New Zealand are the two best places on Earth to survive a nuclear war. The recently published set of calculations don’t focus on blast-related deaths or even deaths caused by radiation fall-out, which most estimates say would number in the hundreds of millions, but instead look at how a nuclear winter caused by nuclear bomb explosions would affect food supplies, potentially leading to the starvation of billions.

Nuclear War Simulations Performed For Decades

Since the first atomic bombs were dropped on the Japanese cities of Hiroshima and Nagasaki in 1945, effectively spelling the end of World War II, war game theorists have looked at a myriad of simulations to determine the potential effects of a full-blown nuclear battle. Many simulations look at the potentially hundreds of millions that would likely die in the initial blasts, while others have tried to model the slower but equally as deadly body count from radiation sickness.

Aug 12, 2023

China’s Military Laser Weapon Could Outperform US Technology

Posted by in category: military

According to Chinese military experts, they have created a novel cooling mechanism that enables high-energy lasers to run “infinitely” without producing any waste heat. South China Morning Post claims that researchers at the National University of Defence Technology in Changsha, Hunan province, claim that the novel cooling system fully avoids the dangerous heat produced by high-energy laser operation.

Aug 11, 2023

AI-Powered War Machines: The Future of Warfare Is Here

Posted by in categories: information science, military, robotics/AI, sustainability

The advancement of robotics and artificial intelligence (AI) has paved the way for a new era in warfare. Gone are the days of manned ships and traditional naval operations. Instead, the US Navy’s Task Force 59 is at the forefront of integrating AI and robotics into naval operations. With a fleet of autonomous robot ships, the Navy aims to revolutionize the way wars are fought at sea.

The Persian Gulf serves as a testing ground for Task Force 59’s fleet of robot ships. These unmanned vessels, ranging from solar-powered kayaks to surfboard-style boats, are equipped with state-of-the-art technology. Their purpose is to act as the eyes and ears of the Navy, collecting data through cameras, radar, and hydrophones. Pattern-matching algorithms help differentiate between oil tankers and potential threats like smugglers.

One particular vessel, the Triton, stands out with its ability to submerge for extended periods. This feature allows it to evade enemy detection and resurface when it is safe to do so. The Triton can stay submerged for up to five days, utilizing this time to recharge its batteries and transmit valuable information back to base.

Aug 9, 2023

Why watermarking AI-generated content won’t guarantee trust online

Posted by in categories: finance, government, military, robotics/AI

The need for transparency around AI-generated content is clear, but the value of measures like watermarks is not.

A few miles away, White House aides and reporters scrambled to figure out whether a viral online image of the exploding building was in fact real.

It wasn’t. It was AI-generated. Yet government officials, journalists, and tech companies were unable to take action before the image had real impact. It not only caused confusion but led to a dip in financial markets.

Continue reading “Why watermarking AI-generated content won’t guarantee trust online” »

Aug 7, 2023

China hacked Japan’s sensitive defense networks, officials say

Posted by in categories: cybercrime/malcode, military

Beijing’s compromise of Tokyo’s classified cyber networks could prevent greater strategic coordination between Japan’s Defense Ministry and the Pentagon.

Aug 7, 2023

Australian military is funding a computer chip merged with human brain cells

Posted by in categories: biotech/medical, computing, military, neuroscience

This article is an installment of Future Explored, a weekly guide to world-changing technology. You can get stories like this one straight to your inbox every Thursday morning by subscribing here.

The Australian military is funding a project to grow intelligent “mini-brains” in petri dishes. The goal is to use these “DishBrains” to design better AIs — and, eventually, even combine the two, creating AIs merged with processing features of human brain cells.

Continue reading “Australian military is funding a computer chip merged with human brain cells” »

Aug 7, 2023

Japan’s prime minister warns of Russia’s ‘nuclear threat’

Posted by in category: military

Japanese Prime Minister Fumio Kishida warned of Russia’s nuclear threat and reaffirmed a pledge to work to make the world free of nuclear weapons in a speech marking 78 years since the atomic bomb fell on Hiroshima on Sunday. “As the only country to have experienced the horror of nuclear devastation in war, Japan will press on tirelessly with its efforts to bring about ‘a world without nuclear weapons,’” Kishida said in remarks delivered in Hiroshima, in a tribute to the victims, their families and those still suffering aftereffects of the bomb.

Aug 7, 2023

A Magnetohydrodynamic Drive In The Kitchen Sink

Posted by in category: military

The magnetohydrodynamic (MHD) drive certainly sounds like something out of science fiction — using an array of magnets and electrodes, this high-tech propulsion technology promises to silently propel a craft through the water without any moving parts. As long as you can provide it with a constant supply of electricity, anyway.

Of course, as is often the case, the devil is in the details. Even with the obvious scientific and military applications of such a propulsion unit, scaling MHD technology up has proven difficult. But as [Jay Bowles] of Plasma Channel shows in his latest video, that doesn’t mean you can’t experiment with the concept at home. Even better, getting verifiable results is much easier than you’d think.

Continue reading “A Magnetohydrodynamic Drive In The Kitchen Sink” »

Aug 6, 2023

‘We repeated ignition’: Lab behind nuclear fusion breakthrough duplicates success after months of near-misses

Posted by in categories: military, nuclear energy, particle physics

They finally reached ignition again last week, according to a statement Sunday from the lab. The news was first reported by the Financial Times.

“In an experiment conducted on July 30, we repeated ignition,” the statement read. “Analysis of those results is underway. As is our standard practice, we plan on reporting those results at upcoming scientific conferences and in peer-reviewed publications.”

Unlike fission, the process used in current nuclear power plants, fusion involves smashing atoms together instead of splitting them apart. It theoretically can supply carbon-free energy without long-lasting radioactive waste. But generations of scientists have struggled to master it in a controlled reaction, even though it has been the power source of nuclear weapons for decades.

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