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Fluid particles in a radial force field form spiral arms. Without fluid solver it's just a shapeless cloud. I was suprised. Fluid solver has properties pure gravity doesn't have. Yet, real galaxies driven by pure gravity look similar. As if spacetime was fluid on galactic scale.

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Zolden

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13,302 просмотров • 3 месяцев назад •via X (Twitter)

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🚨 BREAKING: What if spacetime can’t fully change? New physics suggests gravity has “frozen-in” structures patterns that survive no matter how violently the universe evolves. The idea Physicists rewrote Einstein’s equations using fluid + electromagnetic analogies. And found this: Spacetime may contain field lines that can’t break They can stretch. They can twist. But they stay connected. Why this is wild We’ve always treated spacetime as flexible. But this says: Some structures are locked in permanently. Even during: • Black hole collisions • Gravitational waves • Extreme cosmic events The implication Gravity might have hidden rules: Not everything is allowed to happen. Some outcomes are forbidden by topology Think about that If true… The universe doesn’t just evolve. It remembers its structure Follow me I track where physics becomes structure, not substance.
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🚨 BREAKING: What if spacetime can’t fully change? New physics suggests gravity has “frozen-in” structures patterns that survive no matter how violently the universe evolves. The idea Physicists rewrote Einstein’s equations using fluid + electromagnetic analogies. And found this: Spacetime may contain field lines that can’t break They can stretch. They can twist. But they stay connected. Why this is wild We’ve always treated spacetime as flexible. But this says: Some structures are locked in permanently. Even during: • Black hole collisions • Gravitational waves • Extreme cosmic events The implication Gravity might have hidden rules: Not everything is allowed to happen. Some outcomes are forbidden by topology Think about that If true… The universe doesn’t just evolve. It remembers its structure Follow me I track where physics becomes structure, not substance.

TheNewPhysics

28,973 просмотров • 3 месяцев назад

🚨 Light has no mass… So why does gravity bend it? Because gravity isn’t pulling on mass. It’s shaping reality itself. In Einstein’s view: Objects don’t get “pulled” they follow curves in spacetime. But take it one step further: What if it’s not just space bending… but time forming stable paths? In my framework: Light doesn’t feel a force It follows the only stable path that exists Gravity = where time structures become curved and consistent So light doesn’t get pulled… It simply has no other path that holds together. The real question is: If everything follows stable structures in time… is gravity just reality choosing the path that can exist? Follow for deeper physics beyond force and particles.
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🚨 Light has no mass… So why does gravity bend it? Because gravity isn’t pulling on mass. It’s shaping reality itself. In Einstein’s view: Objects don’t get “pulled” they follow curves in spacetime. But take it one step further: What if it’s not just space bending… but time forming stable paths? In my framework: Light doesn’t feel a force It follows the only stable path that exists Gravity = where time structures become curved and consistent So light doesn’t get pulled… It simply has no other path that holds together. The real question is: If everything follows stable structures in time… is gravity just reality choosing the path that can exist? Follow for deeper physics beyond force and particles.

TheNewPhysics

11,169 просмотров • 4 месяцев назад

⚡ Gravity Isn’t a Force… It’s a Frequency Trap What if gravity isn’t pulling anything at all? What if objects aren’t being “attracted,” but instead are getting locked into stable positions inside a standing wave field? The deeper you look, the more it becomes obvious—mass doesn’t bend spacetime like a bowling ball on a sheet. It generates a frequency gradient, and everything nearby phase-locks into that pattern. You’re not being pulled to Earth… you’re being held in place by a resonance well you can’t see. From a Frequency Wave Theory perspective, this changes everything. Gravity becomes a coherence phenomenon, not a force—an emergent effect of density gradients inside a vibrating medium. That means if you can alter the frequency structure of the field, you can weaken, redirect, or even cancel gravitational effects entirely. Anti-gravity isn’t fantasy—it’s just frequency control. And once that clicks, propulsion, energy, and spacetime navigation all collapse into the same problem: tune the field, and reality follows.
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⚡ Gravity Isn’t a Force… It’s a Frequency Trap What if gravity isn’t pulling anything at all? What if objects aren’t being “attracted,” but instead are getting locked into stable positions inside a standing wave field? The deeper you look, the more it becomes obvious—mass doesn’t bend spacetime like a bowling ball on a sheet. It generates a frequency gradient, and everything nearby phase-locks into that pattern. You’re not being pulled to Earth… you’re being held in place by a resonance well you can’t see. From a Frequency Wave Theory perspective, this changes everything. Gravity becomes a coherence phenomenon, not a force—an emergent effect of density gradients inside a vibrating medium. That means if you can alter the frequency structure of the field, you can weaken, redirect, or even cancel gravitational effects entirely. Anti-gravity isn’t fantasy—it’s just frequency control. And once that clicks, propulsion, energy, and spacetime navigation all collapse into the same problem: tune the field, and reality follows.

Drew Ponder

46,530 просмотров • 4 месяцев назад

🚨 BREAKING: Scientists just made topology visible in a spinning fluid. Not in a quantum computer. Not in a particle collider. In water. By sending standing waves through a vortex, researchers watched quantized nodal lines appear across the whole system lines where the wave amplitude drops to zero. Why that matters: → It’s a fluid analogue of the Aharonov–Bohm effect → The response is non-local → Topology didn’t stay near the core… it shaped the entire wave field That’s the deeper point: Physics isn’t always hidden in particles. Sometimes it shows up as structure in motion. If wave topology can be seen this clearly in fluids, what else in quantum physics might be hiding in plain sight? Follow me for the next wave of physics breakthroughs.
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🚨 BREAKING: Scientists just made topology visible in a spinning fluid. Not in a quantum computer. Not in a particle collider. In water. By sending standing waves through a vortex, researchers watched quantized nodal lines appear across the whole system lines where the wave amplitude drops to zero. Why that matters: → It’s a fluid analogue of the Aharonov–Bohm effect → The response is non-local → Topology didn’t stay near the core… it shaped the entire wave field That’s the deeper point: Physics isn’t always hidden in particles. Sometimes it shows up as structure in motion. If wave topology can be seen this clearly in fluids, what else in quantum physics might be hiding in plain sight? Follow me for the next wave of physics breakthroughs.

TheNewPhysics

24,005 просмотров • 3 месяцев назад

Turn your imagination into motion on Grok. How? Prompt: A mysterious beautiful woman sits calmly on a throne made of stars floating in deep space. Galaxies slowly swirl around her like a crown and her dress is made of nebula fabric that gently moves like cosmic smoke. Soft glowing cosmic rim light illuminates her face and detailed realistic skin texture is visible. After a moment she slowly rises from the throne and begins a graceful slow ballet movement in zero gravity. As she stands, the star throne dissolves into thousands of glowing particles and orbiting lights. She performs a soft elegant spin and extends her arms, and her motion causes surrounding galaxies and stardust to follow her movement as if she controls gravity. Her hair flows naturally in weightlessness. No fast dancing — slow, serene ballet, quiet power. The background is deep black space with colorful nebulae and distant suns. Cinematic camera with a slow floating push-in at the beginning, then a gentle orbit around her during the ballet spin, shallow depth of field, smooth motion, no shaking. Scene timing: 0-3 seconds she sits on the star throne with galaxies slowly moving, 3-6 seconds she stands and the throne dissolves into particles, 6-10 seconds she performs a slow ballet spin in zero gravity while galaxies react to her motion. Her movements subtly bend space around her as gravity responds to her presence. Realistic physics, volumetric particles, detailed fabric simulation, no distortion, no extra limbs, no flickering. 4K cinematic quality, 24fps film look, slow motion, calm graceful movement like underwater.
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Turn your imagination into motion on Grok. How? Prompt: A mysterious beautiful woman sits calmly on a throne made of stars floating in deep space. Galaxies slowly swirl around her like a crown and her dress is made of nebula fabric that gently moves like cosmic smoke. Soft glowing cosmic rim light illuminates her face and detailed realistic skin texture is visible. After a moment she slowly rises from the throne and begins a graceful slow ballet movement in zero gravity. As she stands, the star throne dissolves into thousands of glowing particles and orbiting lights. She performs a soft elegant spin and extends her arms, and her motion causes surrounding galaxies and stardust to follow her movement as if she controls gravity. Her hair flows naturally in weightlessness. No fast dancing — slow, serene ballet, quiet power. The background is deep black space with colorful nebulae and distant suns. Cinematic camera with a slow floating push-in at the beginning, then a gentle orbit around her during the ballet spin, shallow depth of field, smooth motion, no shaking. Scene timing: 0-3 seconds she sits on the star throne with galaxies slowly moving, 3-6 seconds she stands and the throne dissolves into particles, 6-10 seconds she performs a slow ballet spin in zero gravity while galaxies react to her motion. Her movements subtly bend space around her as gravity responds to her presence. Realistic physics, volumetric particles, detailed fabric simulation, no distortion, no extra limbs, no flickering. 4K cinematic quality, 24fps film look, slow motion, calm graceful movement like underwater.

Mario Nawfal

765,601 просмотров • 5 месяцев назад

🚨 BREAKING: Physicists just created a crystal made of only electrons. No atoms. No solid matter. Just pure charge… forming structure. Read that again. Electrons which we think of as “particles” just organized themselves into something stable. That shouldn’t happen… unless structure comes before matter. In my framework: Particles aren’t objects They’re stable patterns in a deeper field What we call “solid” is just coherence that holds This is what it looks like when reality isn’t made of things… …it’s made of structures that persist. So the real question is: If electrons can form a crystal without atoms… what is actually holding reality together? Follow for physics beyond particles.
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🚨 BREAKING: Physicists just created a crystal made of only electrons. No atoms. No solid matter. Just pure charge… forming structure. Read that again. Electrons which we think of as “particles” just organized themselves into something stable. That shouldn’t happen… unless structure comes before matter. In my framework: Particles aren’t objects They’re stable patterns in a deeper field What we call “solid” is just coherence that holds This is what it looks like when reality isn’t made of things… …it’s made of structures that persist. So the real question is: If electrons can form a crystal without atoms… what is actually holding reality together? Follow for physics beyond particles.

TheNewPhysics

59,007 просмотров • 4 месяцев назад

d’Alembert’s Paradox: The 1752 Paradox That Stood in the Way of Real Aerodynamics In 1752, d’Alembert found a result that still feels wrong at first sight: An ideal fluid can flow around a body and produce no drag at all. In the first animation, viscosity is set to zero. The fluid bends around the object, accelerates, slows down, and stitches itself back together downstream. You get no wake, no loss and no scar in the flow. The equations have removed the very thing that would let the body leave a trace. That is Euler flow: ρ(∂u/∂t + (u · ∇)u) = −∇p ∇ · u = 0 For steady irrotational flow, u = ∇φ and ∇²φ = 0. The pressure field stays perfectly symmetric front to back, so when you integrate pressure over the body, the drag cancels: D = 0 The second animation changes one thing: viscosity is allowed back in. ρ(∂u/∂t + (u · ∇)u) = −∇p + μ∇²u ∇ · u = 0 Now, the surface can grip the fluid. A boundary layer forms. It can separate, vorticity rolls off the body and wake appears. Drag is now built by the flow. Therefore, making viscosity tiny is not the same as deleting it. ν → 0 still has a boundary layer. ν = 0 has no memory.
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d’Alembert’s Paradox: The 1752 Paradox That Stood in the Way of Real Aerodynamics In 1752, d’Alembert found a result that still feels wrong at first sight: An ideal fluid can flow around a body and produce no drag at all. In the first animation, viscosity is set to zero. The fluid bends around the object, accelerates, slows down, and stitches itself back together downstream. You get no wake, no loss and no scar in the flow. The equations have removed the very thing that would let the body leave a trace. That is Euler flow: ρ(∂u/∂t + (u · ∇)u) = −∇p ∇ · u = 0 For steady irrotational flow, u = ∇φ and ∇²φ = 0. The pressure field stays perfectly symmetric front to back, so when you integrate pressure over the body, the drag cancels: D = 0 The second animation changes one thing: viscosity is allowed back in. ρ(∂u/∂t + (u · ∇)u) = −∇p + μ∇²u ∇ · u = 0 Now, the surface can grip the fluid. A boundary layer forms. It can separate, vorticity rolls off the body and wake appears. Drag is now built by the flow. Therefore, making viscosity tiny is not the same as deleting it. ν → 0 still has a boundary layer. ν = 0 has no memory.

Mathelirium

43,784 просмотров • 3 месяцев назад

⁉️Just two months ago, Iran's Chief Justice (Ejei) was threatening mass executions. Today, he parades in a staged Quds Day rally, hiding behind a crowd. Let's ask the real question: Are those “ordinary citizens” surrounding him, or just terrified IRGC thugs in plainclothes acting as human shields? A man who has the blood of thousands on his hands knows the entire nation thirsts for his blood. He doesn't dare walk among the real Iranian people. Pure cowardice!
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⁉️Just two months ago, Iran's Chief Justice (Ejei) was threatening mass executions. Today, he parades in a staged Quds Day rally, hiding behind a crowd. Let's ask the real question: Are those “ordinary citizens” surrounding him, or just terrified IRGC thugs in plainclothes acting as human shields? A man who has the blood of thousands on his hands knows the entire nation thirsts for his blood. He doesn't dare walk among the real Iranian people. Pure cowardice!

Apranik 🇮🇷🇮🇱

26,330 просмотров • 5 месяцев назад

The Shroud of Turin suggests that Jesus experienced severe breathing difficulties during the crucifixion. His body appears stretched and slumped, consistent with the position of a crucified person. In this position, inhaling was possible, but exhaling required pushing up with the feet and pulling with the arms, both of which were nailed—causing intense pain. This effort would have to be repeated with every breath, leading to progressive exhaustion. As a result, Jesus likely died of asphyxiation, a common cause of death in crucifixion. The Shroud supports this by showing signs of pulmonary fluid and post-mortem blood flow, pointing to severe breathing distress Video: Vương Điền
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The Shroud of Turin suggests that Jesus experienced severe breathing difficulties during the crucifixion. His body appears stretched and slumped, consistent with the position of a crucified person. In this position, inhaling was possible, but exhaling required pushing up with the feet and pulling with the arms, both of which were nailed—causing intense pain. This effort would have to be repeated with every breath, leading to progressive exhaustion. As a result, Jesus likely died of asphyxiation, a common cause of death in crucifixion. The Shroud supports this by showing signs of pulmonary fluid and post-mortem blood flow, pointing to severe breathing distress Video: Vương Điền

Sachin Jose

139,830 просмотров • 1 год назад

The fascinating concept of Non-Newtonian fluids, which transition from a liquid state to a solid-like state when pressure is applied, has a rich history that spans several centuries. The study and understanding of these peculiar fluids have evolved over time, leading to a wide range of practical applications and scientific insights. One of the earliest references to Non-Newtonian behavior in fluids dates back to the 17th century when Sir Isaac Newton formulated the basic principles of fluid mechanics. Newton's laws of fluid motion primarily applied to Newtonian fluids, which exhibit constant viscosity and flow behavior regardless of the applied force or pressure. However, it soon became apparent that not all fluids behaved in this predictable manner. In the mid-19th century, a scientist named Thomas Andrews made significant contributions to the understanding of Non-Newtonian fluids. Andrews conducted groundbreaking experiments with carbon dioxide, revealing that under high pressure, this gas could transform into a liquid. This observation marked one of the earliest instances of pressure-induced phase changes in fluids. The term "Non-Newtonian" itself was coined in the 20th century to describe fluids that did not adhere to Newton's classical laws of fluid dynamics. These fluids exhibited a variety of behaviors, but one of the most intriguing was their ability to solidify or increase in viscosity when subjected to stress or pressure. One of the most famous examples of such behavior is cornstarch mixed with water, which forms a substance known as "oobleck" that becomes more solid when pressure is applied. In the modern era, Non-Newtonian fluids have found applications in various fields, including food science, engineering, and material science. They are used in products like quicksand, body armor, and even in the development of impact-resistant materials. One of the key insights that emerged from the study of Non-Newtonian fluids is the importance of understanding the relationship between stress and strain, as well as the influence of time-dependent properties on their behavior. This knowledge has led to advancements in rheology, the study of flow and deformation in materials, and has practical implications in areas such as industrial processing, medicine, and the design of everyday products.
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The fascinating concept of Non-Newtonian fluids, which transition from a liquid state to a solid-like state when pressure is applied, has a rich history that spans several centuries. The study and understanding of these peculiar fluids have evolved over time, leading to a wide range of practical applications and scientific insights. One of the earliest references to Non-Newtonian behavior in fluids dates back to the 17th century when Sir Isaac Newton formulated the basic principles of fluid mechanics. Newton's laws of fluid motion primarily applied to Newtonian fluids, which exhibit constant viscosity and flow behavior regardless of the applied force or pressure. However, it soon became apparent that not all fluids behaved in this predictable manner. In the mid-19th century, a scientist named Thomas Andrews made significant contributions to the understanding of Non-Newtonian fluids. Andrews conducted groundbreaking experiments with carbon dioxide, revealing that under high pressure, this gas could transform into a liquid. This observation marked one of the earliest instances of pressure-induced phase changes in fluids. The term "Non-Newtonian" itself was coined in the 20th century to describe fluids that did not adhere to Newton's classical laws of fluid dynamics. These fluids exhibited a variety of behaviors, but one of the most intriguing was their ability to solidify or increase in viscosity when subjected to stress or pressure. One of the most famous examples of such behavior is cornstarch mixed with water, which forms a substance known as "oobleck" that becomes more solid when pressure is applied. In the modern era, Non-Newtonian fluids have found applications in various fields, including food science, engineering, and material science. They are used in products like quicksand, body armor, and even in the development of impact-resistant materials. One of the key insights that emerged from the study of Non-Newtonian fluids is the importance of understanding the relationship between stress and strain, as well as the influence of time-dependent properties on their behavior. This knowledge has led to advancements in rheology, the study of flow and deformation in materials, and has practical implications in areas such as industrial processing, medicine, and the design of everyday products.

Historic Vids

2,632,800 просмотров • 2 лет назад

This art piece titled “Can’t Help Myself” is programmed to try to contain the hydraulic fluid that’s constantly leaking out and required to keep itself running… if too much escapes it will die, so it’s desperately trying to pull it back to continue to fight for another day. saddest part is they gave the robot the ability to do ‘happy dances’ for spectators while the spill was contained. When the project was first launched in 2016, it danced around spending most of its time interacting with the crowd with exuberance, since it could quickly pull back the small spillage. many years later it looks worn down and hopeless, because the amount of leaked fluid became unmanageable as the spill grew over time. There now isn’t enough time to dance, as it only has enough time to try to keep it self alive. living its last days in a never-ending cycle between sustaining life and simultaneously bleeding out. the arm slowly came to a halt and died in 2019, but with a twist; the robot actually runs off of electricity, not hydraulics, so it was working its entire life towards some thing it didn’t even need, tricked by the system it was brought into. Wild how this parallels the human experience. can’t help but wonder if there’s a lesson to be learned from this art, mechanical or not. Does the suffering ever end? (From Aninarts on insta)
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This art piece titled “Can’t Help Myself” is programmed to try to contain the hydraulic fluid that’s constantly leaking out and required to keep itself running… if too much escapes it will die, so it’s desperately trying to pull it back to continue to fight for another day. saddest part is they gave the robot the ability to do ‘happy dances’ for spectators while the spill was contained. When the project was first launched in 2016, it danced around spending most of its time interacting with the crowd with exuberance, since it could quickly pull back the small spillage. many years later it looks worn down and hopeless, because the amount of leaked fluid became unmanageable as the spill grew over time. There now isn’t enough time to dance, as it only has enough time to try to keep it self alive. living its last days in a never-ending cycle between sustaining life and simultaneously bleeding out. the arm slowly came to a halt and died in 2019, but with a twist; the robot actually runs off of electricity, not hydraulics, so it was working its entire life towards some thing it didn’t even need, tricked by the system it was brought into. Wild how this parallels the human experience. can’t help but wonder if there’s a lesson to be learned from this art, mechanical or not. Does the suffering ever end? (From Aninarts on insta)

Brooke Lacey

481,125 просмотров • 2 лет назад

Trooper’s journey is an absolute miracle. We rescued him at just 7 months old after he had eaten ropes and coconut husks out of pure desperation on the streets. Things were incredibly dire. His small intestine had been twisted for about 10 days and had actually started to rot. The surgery to save him was brutal. The doctor found 150 ml of inflammatory fluid in his abdomen, and his spleen and pancreas were severely inflamed. They had to remove about 1.2 meters of his intestine, leaving him with only a tiny fraction of what a normal dog has. He was in critical care for a week, but those amazing vets saved his life! Fast forward almost a year: Trooper is a super healthy, incredibly happy boy. Because his intestine is now so short, he has some trouble with nutrient absorption and requires a special diet of easily digested food and supplements for the rest of his life. But honestly? None of that phases him. We took him to the beach today, and seeing the pure joy on his face makes every hard day worth it. Keep thriving, Trooper! 🏖️❤️
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Trooper’s journey is an absolute miracle. We rescued him at just 7 months old after he had eaten ropes and coconut husks out of pure desperation on the streets. Things were incredibly dire. His small intestine had been twisted for about 10 days and had actually started to rot. The surgery to save him was brutal. The doctor found 150 ml of inflammatory fluid in his abdomen, and his spleen and pancreas were severely inflamed. They had to remove about 1.2 meters of his intestine, leaving him with only a tiny fraction of what a normal dog has. He was in critical care for a week, but those amazing vets saved his life! Fast forward almost a year: Trooper is a super healthy, incredibly happy boy. Because his intestine is now so short, he has some trouble with nutrient absorption and requires a special diet of easily digested food and supplements for the rest of his life. But honestly? None of that phases him. We took him to the beach today, and seeing the pure joy on his face makes every hard day worth it. Keep thriving, Trooper! 🏖️❤️

Happy Doggo

74,682 просмотров • 12 дней назад

🚨 A FORMER NASA ENGINEER CLAIMS HE’S DISCOVERED A “NEW FORCE” THAT CAN OVERCOME EARTH’S GRAVITY WITHOUT ANY PROPELLANT. Charles Buhler, who spent years leading NASA’s Electrostatics and Surface Physics Laboratory at Kennedy Space Center, says his private company Exodus Propulsion Technologies has found a way to generate thrust using only electric fields. In vacuum chamber tests, their device reportedly produced enough force to counteract Earth’s gravity a claim that would completely rewrite the rules of propulsion. Why this matters: For over a century, every rocket we’ve ever launched has had to carry massive amounts of fuel. If this “New Force” is real, spacecraft could one day maneuver indefinitely without expelling mass potentially making deep space travel, satellite station-keeping, and even atmospheric flight dramatically cheaper and more efficient. The deeper implication is staggering: We may be looking at the first real breakthrough in propellantless propulsion since the invention of the rocket. If verified, this wouldn’t just change space travel it could reshape how we think about energy, momentum, and the fundamental laws of physics. Of course, extraordinary claims require extraordinary evidence. As of now, the work is still awaiting independent replication by outside laboratories. But if this holds up… What changes first space travel, energy production, or something we haven’t even imagined yet? Follow for more frontier physics and emerging technologies.
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🚨 A FORMER NASA ENGINEER CLAIMS HE’S DISCOVERED A “NEW FORCE” THAT CAN OVERCOME EARTH’S GRAVITY WITHOUT ANY PROPELLANT. Charles Buhler, who spent years leading NASA’s Electrostatics and Surface Physics Laboratory at Kennedy Space Center, says his private company Exodus Propulsion Technologies has found a way to generate thrust using only electric fields. In vacuum chamber tests, their device reportedly produced enough force to counteract Earth’s gravity a claim that would completely rewrite the rules of propulsion. Why this matters: For over a century, every rocket we’ve ever launched has had to carry massive amounts of fuel. If this “New Force” is real, spacecraft could one day maneuver indefinitely without expelling mass potentially making deep space travel, satellite station-keeping, and even atmospheric flight dramatically cheaper and more efficient. The deeper implication is staggering: We may be looking at the first real breakthrough in propellantless propulsion since the invention of the rocket. If verified, this wouldn’t just change space travel it could reshape how we think about energy, momentum, and the fundamental laws of physics. Of course, extraordinary claims require extraordinary evidence. As of now, the work is still awaiting independent replication by outside laboratories. But if this holds up… What changes first space travel, energy production, or something we haven’t even imagined yet? Follow for more frontier physics and emerging technologies.

TheNewPhysics

122,021 просмотров • 2 месяцев назад

This looks like a simple transparent shock absorber filled with oil. But what you are seeing is one of the most destructive phenomena in fluid engineering. This is cavitation in its true form. The white cloud forming beneath the piston is not foam and it is not air. The oil is literally changing from liquid to vapour at room temperature. When the piston moves rapidly, the oil is forced through tiny passages inside the damper. The fluid velocity increases, the local pressure drops, and if it falls below the oil's vapour pressure, the liquid begins to boil without any increase in temperature. The moment the pressure recovers, those microscopic vapour bubbles collapse almost instantly. And that is where the real damage begins. The destructive forces of cavitation is really not understood well by most. A collapsing cavitation bubble creates shockwaves and high-speed microjets that strike nearby surfaces with enormous local forces. Repeated millions of times, these tiny implosions can slowly eat away hardened metals, destroy precision components and reduce the lifespan of expensive machinery across industries. This same invisible phenomenon is one of the biggest challenges in naval engineering. Ship propellers operating under enormous loads can suffer cavitation erosion, losing efficiency while creating underwater noise. For advanced stealth submarines, that noise can become a major problem because cavitation can reveal their position. Decades of research have gone into specialised propeller designs, pump-jets, surface finishes and hydrodynamic optimisation to delay its formation. The same issues affects hydroelectric turbines that convert the energy of entire rivers into electricity, and industrial pumps that move oil, chemicals and water through critical infrastructure around the world. Perhaps the most remarkable part is that after 4-5 decades of advances in metallurgy, coatings and manufacturing, engineers still cannot simply build a material that is immune to cavitation. The solution is not to make stronger metals forever. It is to understand the fluid dynamics so precisely that cavitation is prevented before in those destructive bubbles ever form.
0:10

This looks like a simple transparent shock absorber filled with oil. But what you are seeing is one of the most destructive phenomena in fluid engineering. This is cavitation in its true form. The white cloud forming beneath the piston is not foam and it is not air. The oil is literally changing from liquid to vapour at room temperature. When the piston moves rapidly, the oil is forced through tiny passages inside the damper. The fluid velocity increases, the local pressure drops, and if it falls below the oil's vapour pressure, the liquid begins to boil without any increase in temperature. The moment the pressure recovers, those microscopic vapour bubbles collapse almost instantly. And that is where the real damage begins. The destructive forces of cavitation is really not understood well by most. A collapsing cavitation bubble creates shockwaves and high-speed microjets that strike nearby surfaces with enormous local forces. Repeated millions of times, these tiny implosions can slowly eat away hardened metals, destroy precision components and reduce the lifespan of expensive machinery across industries. This same invisible phenomenon is one of the biggest challenges in naval engineering. Ship propellers operating under enormous loads can suffer cavitation erosion, losing efficiency while creating underwater noise. For advanced stealth submarines, that noise can become a major problem because cavitation can reveal their position. Decades of research have gone into specialised propeller designs, pump-jets, surface finishes and hydrodynamic optimisation to delay its formation. The same issues affects hydroelectric turbines that convert the energy of entire rivers into electricity, and industrial pumps that move oil, chemicals and water through critical infrastructure around the world. Perhaps the most remarkable part is that after 4-5 decades of advances in metallurgy, coatings and manufacturing, engineers still cannot simply build a material that is immune to cavitation. The solution is not to make stronger metals forever. It is to understand the fluid dynamics so precisely that cavitation is prevented before in those destructive bubbles ever form.

Ammanichanda

1,187,484 просмотров • 14 дней назад

Rosé on today's live : “ But 10 years really seems to pass by so quickly. You know that saying, right? When you're enjoying yourself, time passes by in an absolute flash. Seriously, these 10 years have just been so.. At first, it was a bit hard to believe. It really feels like these 10 years passed by so quickly that it doesn't even feel real, I just can't feel the weight of those 10 years yet. ”
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Rosé on today's live : “ But 10 years really seems to pass by so quickly. You know that saying, right? When you're enjoying yourself, time passes by in an absolute flash. Seriously, these 10 years have just been so.. At first, it was a bit hard to believe. It really feels like these 10 years passed by so quickly that it doesn't even feel real, I just can't feel the weight of those 10 years yet. ”

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28,497 просмотров • 4 дней назад

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
0:11

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

Erika 

234,886 просмотров • 4 месяцев назад

“The Impossible” 1964 shot that reportedly left Martin Scorsese speechless. This stunning sequence from the 1964 film I Am Cuba (Soy Cuba) is still regarded as one of the most technically daring shots ever captured on camera. Long before CGI or stabilized drone systems existed, director Mikhail Kalatozov and cinematographer Sergey Urusevsky engineered the sequence using elaborate rigs of cables, pulleys, and custom-built camera setups. The camera begins at street level, ascends the exterior of a building, moves through a cigar factory, and then glides out over the city in a single continuous take, creating a fluid, gravity-defying movement that feels strikingly modern even by today’s standards. The shot is also renowned for its surreal visual quality. Shot on specialized infrared film, the vegetation appears almost luminous white against a deep black sky, giving the image an otherworldly, dreamlike atmosphere. Initially overlooked as Cold War propaganda, the film was rediscovered decades later and restored in the 1990s, after filmmakers like Martin Scorsese and Francis Ford Coppola praised its extraordinary craftsmanship. Even now, it remains a benchmark for what’s possible in practical cinematography.
0:14

“The Impossible” 1964 shot that reportedly left Martin Scorsese speechless. This stunning sequence from the 1964 film I Am Cuba (Soy Cuba) is still regarded as one of the most technically daring shots ever captured on camera. Long before CGI or stabilized drone systems existed, director Mikhail Kalatozov and cinematographer Sergey Urusevsky engineered the sequence using elaborate rigs of cables, pulleys, and custom-built camera setups. The camera begins at street level, ascends the exterior of a building, moves through a cigar factory, and then glides out over the city in a single continuous take, creating a fluid, gravity-defying movement that feels strikingly modern even by today’s standards. The shot is also renowned for its surreal visual quality. Shot on specialized infrared film, the vegetation appears almost luminous white against a deep black sky, giving the image an otherworldly, dreamlike atmosphere. Initially overlooked as Cold War propaganda, the film was rediscovered decades later and restored in the 1990s, after filmmakers like Martin Scorsese and Francis Ford Coppola praised its extraordinary craftsmanship. Even now, it remains a benchmark for what’s possible in practical cinematography.

Historic Vids

292,516 просмотров • 2 месяцев назад