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CNN —The US government is tracking more than 650 potential cases of so-called “unidentified aerial phenomenon,” commonly known as UFOs, according to the director of the office created last year to focus on the sightings. He played video from two of cases that had been declassified, one that had been resolved and the other unresolved. Kirkpatrick explained that this case was unresolved because there was no other evidence beyond the video. He said that in a small number of cases, he has concerns the episodes could be evidence of potential technological advancements. Those cases, he said, are handed off to the intelligence community to investigate further.
Ukraine has used a WWI-era machine gun on the front line to mow down the enemy. "It only works when there is a massive attack going on," a Ukrainian soldier told BBC News. Ukraine's troops have modified the guns with modern add-ons such as optics and suppressors, according to reporting from Task and Purpose. The fighting in Ukraine has repeatedly garnered parallels to World War I, with both sides locked in a brutal war of attrition featuring trenches, relentless artillery barrages, and heavy casualties. In this environment, even some of the weapons of that era have come in handy as Ukrainian troops face human wave attacks on the front line — tactics common to World War I.Ukraine has also apparently utilized a type of World War I-era sniper decoy, employing dummies meant to fool enemy snipers.
Ukraine and Russia have employed an array of drones since Moscow attacked in February 2022. Despite sanctions imposed by the US and its allies, Russia has been able to keep its most effective drone flying over Ukraine thanks to Western-made parts. The Orlan-10's specifications and characteristics in a graphic published by the Royal United Services Institute in December 2022. Russian intelligence services are likely involved in sourcing this technology through contacts and front companies around the world. Western-made components found in the Orlan-10, according to the Royal United Services Institute.
The conflict in Ukraine has emerged as the first major war involving drone use on both sides. By the late 1990s, Predator drones were being used by the US and NATO for reconnaissance missions in the Kosovo War. Ukraine has in many ways emerged as a guinea pig for drone warfare. Anadolu Agency/Getty ImagesLater in the war, Russia began launching swarms of Iranian-made Shahed-136 "kamikaze" drones, striking targets across Ukraine. Drones have significantly shortened the so-called kill chain, Cancian explained, helping troops swiftly locate targets and provide coordinates for artillery.
Here are some of the air-defense systems that countries are sending Ukraine to take on that threat. The US, Britain, and several other countries are sending Ukraine a variety of air-defense systems. Here are some that are being supplied to Ukraine:NASAMSThe National Advanced Surface-to-Air Missile System. Norwegian Ministry of DefenseParticularly significant is that rather than custom-designed surface-to-air missiles, NASAMS fires existing air-to-air missiles that are modified to be launched from the ground. Shan Yuqi/Xinhua via Getty ImagesUkraine has already received the first of four German IRIS-T short-range anti-aircraft missile systems.
Всего за три дня приема когнитивные способности старых животных возросли до юношеского уровня. Ученые Калифорнийского университета в Сан-Франциско обнаружили, что всего несколько доз экспериментального препарата ISRIB помогают обратить вспять возрастное ухудшение памяти и умственных способностей у грызунов. Наши данные свидетельствуют о том, что старый мозг не теряет навсегда основные когнитивные способности", – отметили авторы работы. ISRIB перезагружает механизмы производства белка в клетках после того, как они блокируются одной из интегрированных реакций на стресс (ISR). Во время опытов старых мышей учили выбираться из водяной ловушки с помощью скрытой платформы.
Organizations: Калифорнийский университет Locations: СанФранциско
Total: 6