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Chinese researchers say they have made a breakthrough in laser propulsion technology that could one day be used on submarines and missiles. A laser propulsion expert at McGill University told Business Insider they see flaws in the claims. Rather than relying on nuclear or battery power, the scientists say they have found a way to use lasers to propel submarines — known as underwater laser propulsion. This technology has already been used in Russian Shkval torpedoes since the 1970s, using rocket exhaust rather than laser power. "The average overall thrust is low and the jet power cannot exceed the power supply of the laser."
Persons: , Yang Ge, Xulong Yang, Ge Yang, Andrew Higgins, Higgins Organizations: McGill University, Business, Service, Submarines, China's Harbin University, China Morning Post, NASA, Harbin University, China Defense Locations: China, Sinica, torpedos
The multiplying drones could expand into swarms that would confuse air defense systems, experts told Business Insider. But even when separated into single units, these drones' flight efficiency remains 40% higher than most small drones. Advertisement"When drones are detected, defense systems deploy a certain amount of resources proportional to the threat. If that threat suddenly multiplies, it provides an opportunity to overwhelm the air defense resources being deployed," Shumate said. Small, affordable drones are reshaping the modern battlefield in unprecedented ways, and forcing militaries to rapidly modernize their defense systems.
Persons: , Getty, Will Shumate, Shumate, Huang, Sean Gallup, Admiral John Aquilino, Admiral Aquilino Organizations: Service, China Morning Post, Nanjing University of Aeronautics, Astronautics, Acta Aeronautica, Army, RAND, Getty, US Army, Pacific Command, Armed Locations: China, Russia, Ukraine
Alex Teachey is a New Yorker who moved to Taiwan in 2020. AdvertisementThis as-told-to essay is based on a conversation with Alex Teachey, a 38-year-old astronomer and New Yorker who moved to Taiwan in 2020. I landed my current job as a postdoctoral fellow at the Academia Sinica in Taipei, Taiwan, that same year. It's in a neighborhood that I love, in New Taipei City, the enormous donut that sprawls around the center of Taipei. I live a 20-minute bike ride from my office — I never could have have afforded anything remotely similar if I'd stayed in New York City.
Persons: Alex Teachey, , I'd, New York Alex Teachey, it'd, I've, — it's, we're Organizations: New Yorker, Service, Yorker, New York University, Columbia University, Academia Sinica, Tap, Google, Taiwan's Locations: New, Taiwan, New York, Taipei, Here's, Tap Taipei, York City, New York City, Yonghe, New Taipei City, Qingshui Cliff, Hualien
BEIJING, Nov 7 (Reuters) - One of the few independently funded English-language publications to cover China in depth for Western audiences, "The China Project", is to close because of a lack of funding, its editor-in-chief, Jeremy Goldkorn, wrote in a post. The China Project, which began as a newsletter in 2016 and was formerly known as SupChina, expanded to become a "news and business intelligence company focused on helping a global audience understand China", it says on its website. But as with a number of online-based media companies in recent years, such as Buzzfeed News, financing became a problem. "The media business is precarious," Goldkorn wrote in a statement on the website. The company sought to produce "balanced" reporting on China and U.S.-China-themed topics.
Persons: Jeremy Goldkorn, Goldkorn, Bob Guterma, Martin Quin Pollard, Laurie Chen, Casey Hall, Brenda Goh, Robert Birsel Organizations: China, Media, Reuters, Thomson Locations: BEIJING, China, U.S
Armies around the world are testing high-energy laser weapons to intercept targets. If their claims are true, it would mean that China has leapfrogged ahead of the US in developing high-energy laser weapons that could be used on the battlefield. The capability China's military scientists claim to have developed, however, has not yet been seen in action. Laser beams can heat up gas in the air, which can reduce the quality of the beam and cause damage inside the laser chamber, according to the report. The Marines have tested a Compact Laser Weapons System in the range of 2 to 10 kilowatts, and the Air Force has received high-energy laser pods for its fighter jets.
Persons: Steve Weaver, Lockheed Martin Organizations: Service, China Morning, National University of Defence Technology, Optica Sinica, British, Energy, Lockheed, US Department of Defense's, US Army, Marines, Air Force, Defense Department, Office Locations: China, Wall, Silicon, Hunan, Optica, United States, Portland
Spre deosebire de perioada lui de glorie, lacul Sun Moon a devenit acum faimos dintr-un motiv nefericit. La începutul lunii, descoperirea unui telefon mobil pe fundul lacului, care încă mai funcționa, a adus lacul în atenția publică. Insula se bazează pe taifunurile de sezon pentru a umple rezervoarele, însă în 2020 niciunul nu a mai ajuns pe uscat. "Asta înseamnă un risc mai crescut de secetă și dezastre naturale, precum inundații sau alunecări de teren", spune Hsu. Mulți oameni de pe insulă sunt afectați de restricții, iar anumite zone au închis furnizarea de apă potabilă două zile pe săptămână.
Persons: Doctorul Huang Organizations: Moon Locations: Taiwan, secetele, Australia
Sursa foto: ProfimediaTaiwan se confruntă cu cea mai gravă secetă din ultimii 56 de aniStatul insular Taiwan se confruntă cu cea mai gravă secetă din ultimii 56 de ani, iar lacul Sun Moon, una dintre principalele atracții turistice de pe insulă, a fost puternic afectat, scrie The Guardian. Insula se bazează pe taifunurile de sezon pentru a umple rezervoarele, însă în 2020 niciunul nu a mai ajuns pe uscat. În capitala Taipei, consumul a fost de 338 de litri pe zi. Compania aduce apă cu cisternele în anumite unități, dar și-a sporit și procesele de reducere a consumului și conservare a apei. "Taiwan nu este o țară fără apă", spune Thomas Liou.
Persons: Doctorul Huang, Thomas Liou, TSMC Organizations: Moon, Guardian, Ministerul Economiei, Wei Locations: Taiwan, secetele, Australia, Taipei, Taichung
Afghanistan is being overrun by crystal meth
  + stars: | 2021-05-07 | by ( Ali Latifi | ) www.businessinsider.com   time to read: +14 min
The US is leaving behind a flourishing, violent trade in heroin and crystal meth in Afghanistan. HERAT, Afghanistan — For weeks, Afghan police had been staking out a single-family house they believed was being used as a meth lab. Afghanistan's drug trade generates an estimated $35 million a month for the Taliban and drug gangs. A mysterious grassIn 2017, rumors circulated in western Afghanistan that a mysterious form of grass had been found to contain the key ingredient in crystal meth. "So long as this war continues, the drug trade will continue to grow bigger and bigger.
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