The invasion of Ukraine has prompted militaries to update their arsenals—and Silicon Valley stands to capitalize.
Category: military – Page 94
A liquefied gas electrolyte to create temperature-resilient lithium-metal batteries
Lithium Ion-based batteries are among the most effective and widely used battery technologies. However, the batteries’ electrolytes mainly contain organic carbonated solvents, which are considered highly flammable with a narrow temperature window. To ensure that they don’t catch fire while operating at extreme temperatures, engineers must design safer electrolytes that are not only non-flammable, but also able to operate at a wide temperature range.
Researchers in the University of California San Diego’s Shirley Meng group and at the Army Research Laboratory have recently developed new liquefied gas electrolytes that could be used to produce lithium-metal batteries that can operate safely from-60 to 55 o C. These electrolytes have a unique structure, outlined in a paper published in Nature Energy, which make them capable of extinguishing fire.
“The liquefied gas electrolyte (LGE) was firstly conceptualized by our research group in a paper published in Science in 2017 and has been developed over five years,” Yijie Yin, one of the researchers who are working in this field from Prof. Meng’s lab, told TechXplore. “It consists of a variety of fluorocarbon gases, that when put under pressure, liquefies to form a chemically stable, low-freezing point, low-cost electrolyte.”
US will provide Ukraine with advanced NASAMS in a new $820m military aid
The U.S. announced on Friday a new $820 million Ukraine military aid that includes the National Advanced Surface-to-Air Missile System (NASAMS). The Pentagon contract denotes the start of a contracting process for a significant amount of equipment, including four more counter-artillery radars and up to 150,000 rounds of 155mm artillery ammunition, through the Ukraine Security Assistance Initiative.
NASAMS can be quite an unpleasant adversary for tactical aircraft (possibly with the exception of the Su-57), helicopters, drones, subsonic cruise missiles (Caliber, Kh-101, 9M728). Against high-speed targets (from Oniks to Kinzhal) the benefit of this system seems doubtful.
5/— Dmitry Stefanovich (@KomissarWhipla) July 1, 2022
Laser Pistols & Lightsabers
The first 1,000 people to use the link will get a free trial of Skillshare Premium Membership: https://skl.sh/isaacarthur05216
Science fiction amazes us with futuristic technology and weapons, but many like the laser pistol, raygun, or lightsaber seem high-tech versions of old tech. Are such weapons possible and if so, could they have a role in future warfare?
Visit our Website: http://www.isaacarthur.net.
Support us on Patreon: https://www.patreon.com/IsaacArthur.
Facebook Group: https://www.facebook.com/groups/1583992725237264/
Reddit: https://www.reddit.com/r/IsaacArthur/
Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.
SFIA Discord Server: https://discord.gg/53GAShE
Listen or Download the audio of this episode from Soundcloud:
Episode’s Audio-only version: https://soundcloud.com/isaac-arthur-148927746/laser-pistols-lightsabers.
Episode’s Narration-only version: https://soundcloud.com/isaac-arthur-148927746/laser-pistols-…ation-only.
Credits:
Laser Pistols & Lightsabers.
Science & Futurism with Isaac Arthur.
Episode 290a; May 16, 2021
Written, Produced & Narrated by Isaac Arthur.
Script Editors:
Andy Nelson.
Jason Burbank.
Jerry Guern https://www.youtube.com/watch?v=mxgArWbEhZg.
Matthew Campbell.
Graphics by:
As these bacteria eat, they generate an unusual triangular molecule that can be used to make jet fuel
Aircrafts transport people, ship goods, and perform military operations, but the petroleum-based fuels that power them are in short supply. In research publishing on June 30 in the journal Joule, researchers at the Lawrence Berkeley Lab have found a way to generate an alternative jet fuel by harvesting an unusual carbon molecule produced by the metabolic process of bacteria commonly found in soil.
“In chemistry, everything that requires energy to make will release energy when it’s broken,” says lead author Pablo Cruz-Morales, a microbiologist at DTU Biosustain, part of the Technical University of Denmark. When petroleum jet fuel is ignited, it releases a tremendous amount of energy, and the scientists at the Keasling Lab at the Lawrence Berkeley Laboratory thought there must be a way to replicate this without waiting millions of years for new fossil fuels to form.
Jay Keasling, a chemical engineer at University of California, Berkeley, approached Cruz-Morales, who was a postdoc in his lab at the time, to see if he could synthesize a tricky molecule that has the potential to produce a lot of energy. “Keasling told me: it’s gonna be an explosive idea,” says Cruz-Morales.
Startup Claims New Military Tech Can See Straight Through Walls
An Israeli military technology startup called Camero-Tech has unveiled a radar-based device that it claims allows soldiers to literally “see through walls,” Insider reports, raising significant questions about surveillance and privacy.
The Xaver 1,000 is a futuristic gadget that can give intelligence units “an unprecedented situational awareness 3D visual picture,” according to the company’s website, and has the ability to detect “live objects (static or dynamic) behind walls and building obstacles.”
That means tactical teams could soon get a highly detailed picture of what’s going on behind a variety of obstructions, allowing them to prepare ahead of breaching urban environments.
High-power lasers promise new defence strategy
Physicists at QinetiQ are developing systems that combine and control high-energy laser beams to provide a powerful and cost-effective countermeasure against drones and other uncrewed objects.
Around the world interest is growing in using high-power laser beams to disable airborne invaders such as drones and other uncrewed objects. These so-called directed-energy systems have the potential to damage or destroy small aerial devices at a fraction of the cost of launching conventional defence missiles or munitions. They have the added advantage that they can be reused many times to counter multiple attacks as well as the growing threat of drone swarms.
At QinetiQ, a UK-based technology company specializing in defence and security solutions, around 10 years of research effort into the physics underpinning these directed-energy systems has demonstrated enough potential to start building and testing practical prototypes. “We have taken a high-risk, high-reward approach to developing these systems,” says Richard Hoad, capability area lead for novel effectors and resilience at QinetiQ. “Our company and our customers in the defence sector have just significantly increased their investment to enable us to prove that our solution is as effective in a wide range of real environments as it is in testing.”