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🇨🇿 Czech Hedgehogs: Simple but Deadly Anti-Tank Barriers This is a classic static anti-tank obstacle invented in Czechoslovakia in the mid-1930s. It’s made of three steel beams welded into a star-like shape — about 1–1.4 meters tall. No matter how it lands or gets hit, one spike always points...

18,298 Aufrufe • vor 2 Monaten •via X (Twitter)

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A widely circulated combat video from the Donbas War in Eastern Ukraine shows a pro-Russian separatist fighter firing a PTRS-41 anti-tank rifle from a standing position — a clip that left millions of online viewers stunned. First surfacing on social media around 2014–2015, the viral military footage captures the fighter bracing the massive weapon's stock against his arm and shoulder before firing a 14.5mm armor-piercing round. Although firing a WWII-era semi-automatic anti-tank rifle while standing looks reckless and physically dangerous, weapons and ballistics experts confirm it's not as catastrophic as it appears. At 46 pounds (21 kg), the PTRS-41's sheer weight, combined with its built-in muzzle brake recoil reduction and gas-operated semi-automatic action, absorbs most of the recoil energy before it reaches the shooter — resulting in an awkward but survivable firing experience. Rather than showing a serious injury or freak accident, this Donbas war footage actually documents a fighter showcasing a rare Soviet anti-tank rifle on camera — a clear example of military misinformation and out-of-context war footage spreading online without proper explanation. The real story behind the clip connects to a fascinating chapter in modern military history. During the early Donbas conflict (2014–2015), both pro-Russian militias and Ukrainian armed forces raided long-abandoned Soviet-era weapons depots, leading to the surprising reemergence of vintage WWII firearms on a modern battlefield. The PTRS-41, originally a World War II anti-tank weapon, was repurposed as a heavy anti-materiel sniper rifle — a relic of WWII finding unexpected new life in 21st-century warfare.

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I see the Left-wing/Ukrainian bots got their talking points. They went from “the labs don’t exist”, to “okay the labs exist but they were doing defensive research”. “Defensive research” is a lie. In the process of defensive research, you create a bioweapon. I’ll explain. Defensive zoonotic research, is when scientists intentionally make animal viruses transmissible in humans, so they can study the virus and proactively develop vaccines, just in case these animal viruses naturally mutate and jump to humans. This way, we have the vaccines already on hand if something were to happen. In theory, it sounds like a good idea, but in the process of creating these vaccines, you must first modify a deadly zoonotic disease, and give it the ability to jump to humans. That’s a biological weapon. If it gets out of the lab, it can now infect the world, and in the case of C19, a man-made bat coronavirus, it did infect the world, and killed millions of people. Why was it so contagious? Because scientists artificially gave it the ability to be transmissible in humans, thus the term “gain of function”. What is the function these zoonotic diseases are gaining? The ability to jump to, and kill, humans. So when anyone says “it’s just defensive research”, they have no idea what they are talking about, and are either running cover or repeating talking points. Defensive research/gain of function, is just a way to circumvent the Geneva Convention and develop biological weapons under the guise of “defense”. Russian MIL alleged that elements within the US, specifically the Democrat Party, in coordination with nefarious NGO’s and Big Pharma, have been using “defensive research” in an offensive capacity, to manufacture global biological crises, to impose global control.

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Normally I wouldn’t be this interested in chip tech, even considering this is impressive. Huawei has found a creative workaround to catch up with the likes of TSMC. But what makes it even more compelling to me is the bigger story and resilience behind it. Starting in 2019, Huawei faced intense sanctions that significantly restricted their access to advanced chip technology and global supply chains. For a while, it looked like this would seriously damage or even sideline them in major way. A lot of people thought the company was done or would be stuck far behind for years. Yet Huawei refused to die. Pushed hard by those challenges, they didn’t fold or give up. Instead, they dug in, poured everything into self-reliance, research, and fresh thinking. They reinvented how they approach problems and entered a whole new era of innovation and creativity that probably wouldn’t have happened this quickly, or maybe even at all, without being forced into that corner. That’s the part I find truly inspiring. When the pressure was at its heaviest, they turned obstacles into fuel. They focused on what they could control, built up their own capabilities, and came back stronger with real breakthroughs. It’s rare to see that kind of determination pay off in such a visible way. So many observers probably believed the sanctions would destroy them or at least slow them down permanently. Instead, they lit a fire under the whole company and sparked a level of ingenuity that feels genuinely exciting to watch unfold. Sanctions were supposed to end them. Instead, they pushed Huawei into this impressive new chapter of self-reliance and forward momentum. That kind of comeback story is exactly why I’m such a big fan and why moments like this announcement feel so satisfying.

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This work makes a humanoid robot do simple parkour moves by looking with a depth camera and choosing the right move on the fly. The big deal is that it turns lots of small human moves into long, real-time robot behavior, without hand-coding every transition or retraining for each new course. A humanoid robot is usually good at steady walking, but it often fails when it has to do fast moves like jumping up, vaulting, or rolling, and then keep going to the next obstacle. The hard part is that you cannot easily collect training data for every possible obstacle shape, distance, and mistake, so robots end up learning a few moves that only work in a narrow setup. This work starts from short clips of real human parkour moves, like stepping over, vaulting, climbing, and rolling. It uses motion matching, which is basically a smart “pick the next clip that fits best right now” search, to stitch those short clips into a long, smooth plan that looks like a human doing a whole course. Then it trains a controller with reinforcement learning (RL), which means the robot learns by trial and error to copy that plan while staying balanced and not falling. After training separate expert controllers for different moves, it compresses them into 1 controller that uses only onboard depth sensing and a simple “go this fast in this direction” command. In real tests on a Unitree G1 humanoid, it can clear multiple obstacles in a row, adapt when obstacles get moved, and climb a wall up to 1.25m.

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When PK was released, several scenes became highly controversial. Many Hindu organizations, political leaders, and supporters argued that the film hurt Hindu religious sentiments and insulted Hindu deities. The controversy led to protests, public debates, and demands for accountability. Now, a recent roadshow has sparked another discussion online after a performer dressed as Lord Hanuman was seen dancing while welcoming a political leader. This has prompted many people to ask: If using or portraying Hindu religious symbols in films is considered disrespectful, shouldn't the same standard apply when similar imagery is used during political events? The debate isn't just about one film or one political event—it's about consistency. If respect for faith is the principle, then many believe that principle should apply equally, regardless of who is involved. Ultimately, the discussion is about whether public figures, political parties, filmmakers, and everyone should follow the same standards of religious sentiments? But, nationalist mockery of Hinduism is acceptable. Anti nationalist mockery of Hinduism is not. Hinduism for BJP is a fancy dress competition. It is a circus act. It is performative activism. It is a SHOW OFF. THEY do not care about Hindu sentiments. They do not care about how the portrayal of Hindu gods will look like for them. Everything is about a big performance. When the same thing was done in the movie PK by Amir Khan, there the IT cell would create a uproar and object. But here, at a procession for the national president Nitin Nabin, everything is alright because nationalist mockery of Hindu Gods is acceptable but anti nationalist mockery of Hindu Gods is not.

Based Monk 📢(#Unreserved)

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When a spacecraft leaves Earth, it doesn’t just fire its engines and head straight to its destination. In many missions, especially those going beyond low Earth orbit, there’s a more subtle and elegant strategy at play, one that uses gravity itself as part of the navigation system. This is often called a gravity assist, or a slingshot maneuver. But in the case of missions like #Artemis II, what’s being used is a closely related idea known as a free-return trajectory. At first glance, it might sound simple: the spacecraft goes to the Moon, loops around it, and comes back. But the physics behind it is anything but simple. Instead of relying on continuous propulsion, the spacecraft follows a carefully calculated path through the gravitational field of the Earth–Moon system. It is launched with just the right speed and direction so that, as it approaches the Moon, the Moon’s gravity bends its trajectory. The spacecraft is effectively flung around the Moon, redirected onto a path that naturally brings it back toward Earth. No major engine burn is needed for the return. Small trajectory corrections may still be required, but gravity does the heavy lifting. That’s the key. This kind of trajectory is not just efficient, it’s also safe. If something goes wrong with the spacecraft’s engines or onboard systems, gravity itself ensures the return. It’s an inherent backup plan, built into the trajectory from the very beginning. The same fundamental idea appears in gravity assists used across the Solar System. When a spacecraft flies past a planet, it can gain or lose speed by exchanging momentum with that planet. From the spacecraft’s point of view, it’s as if it has been accelerated without using fuel. In reality, it has borrowed a tiny amount of orbital energy from the planet itself. That’s how missions like Voyager reached the outer planets, and how probes continue to explore regions far beyond what their onboard fuel alone would allow. But there’s an important distinction. An interplanetary gravity assist is typically used to change speed and direction, often increasing the spacecraft’s energy. A free-return trajectory, like the one used in Artemis II, is designed for something more specific: a path that naturally loops back to Earth without requiring additional propulsion. It’s less about gaining energy, and more about shaping a trajectory that guarantees a return. To understand why this works, it helps to stop thinking in straight lines. In space, motion follows curves defined by gravity. The spacecraft is constantly falling, first toward Earth, then toward the Moon, and then back toward Earth again. What looks like a loop is really a continuous free fall through a changing gravitational landscape. This way of navigating space reveals something deeper. We tend to think of engines as the drivers of motion, but once a spacecraft is on its way, gravity does most of the work. The art of spaceflight is not just about thrust. It’s about knowing when not to use it. #GoodLuck #Artemis NASA Artemis

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