This is cavitation inside a piston diaphragm pump. Most... engineers spend their entire careers hearing this destructive phenomenon. Almost none ever get to see it with their own eyes. When pressure drops below a critical threshold, liquid instantly flashes into vapor, creating thousands of microscopic bubbles throughout the system. It happens in milliseconds, invisible to the naked eye in standard metal pumps. But when pressure rises again, those bubbles don't just disappear quietly. They collapse violently, sending shockwaves rippling through the metal components. The result is catastrophic. Valves get destroyed. Seals get shredded. Pump chambers get hollowed out from the inside, one microscopic implosion at a time. Cavitation is one of the most destructive forces in industrial fluid systems, responsible for equipment failures that cost thousands of dollars per incident. Engineers have studied it for decades through sensors, pressure readings, and the telltale sounds it makes. But they've never been able to watch it happen in real time. Until now. The clear plexiglass head on this LEWA pump changes everything. For the first time, pump engineers can observe cavitation as it occurs, watching the bubble formation and violent collapse that destroys their equipment. It's like finally seeing the invisible enemy that's been wreaking havoc on industrial systems. This is what happens when engineering innovation meets visualization technology. Sometimes the most powerful breakthroughs come from simply making the invisible visible.show more

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.show more

This is why it’s going to take a VERY... long time for our USMNT to get to be at the level of the world’s best. I mean look at the footwork from Romero of Argentina in a semifinal match for the World Cup. Under this pressure, a CENTRAL DEFENDER pulls off this dribble to get himself out of trouble …pulling it out of his own ass. It will be a long time before we pull off creating a defender of this caliber able to do this with all the weight on their shoulders as they try and play it out of the back.show more

Today we’re introducing 2 HUGE changes to the pump... fun mechanism (in beta) 1) Coin creation is FREE 2) Coin creators receive 0.5 SOL (~$80) when their coin completes its bonding curve How does it work? 1) Instead of the creator having to pay ~$2 for coin creation, this cost is now paid by the first buyer of the coin *This unlocks the use case of someone creating a coin without buying any of its supply* Why would they do that? 2) They receive 0.5 SOL (~$80) if the coin completes its bonding curve. - This gets paid out from the pump fun migration fee (now only 1.5 SOL) - it is paid regardless of whether the coin dev has ever held the coin or still holding the coin - The reward also gives an incentive for all devs to get their coin to 100% Final notes: - when the coin is created, it’s not put onchain until someone buys it. That’s why sometimes, there may be a difference between the time it launched on the pump fun interface and when it launched on mainnet (what you will see on solscan, for instance)show more

This is an 80,000-tonne hydraulic forging press from China’s... Northern Heavy Industries, one of the largest metal-forming machines ever built. But it is not simply a machine that bends metal like traditional presses do. At this scale, forging is about changing the internal structure of the material itself, compressing the metal, refining its molecular grain flow and eliminating hidden defects that could cause failure decades later. Machines like this are used to create some of the most critical components on Earth, aircraft landing gear, titanium aerospace structures, nuclear reactor components, massive gas turbine rotors and ship propulsion shafts. The metals being forged are among the most advanced engineering materials available, ultra-high-strength steels, titanium alloys and nickel-based superalloys designed to survive extreme temperatures, pressure and millions of fatigue cycles. An 80,000-tonne press is an industrial ecosystem by itself. The press, hydraulic systems, furnaces, manipulators and supporting infrastructure can require hundreds of millions of dollars in investment, with hydraulic systems requiring tens of megawatts of power to control forces equivalent to thousands of tonnes. The biggest industrial machines often do not make the final products. They make the materials that make those products possible.show more

Kedarnath is a tremendous space. The utterance of the... sound “Shiva” attains a completely new dimension and significance in Kedar. It is a space which has been specially prepared for this particular sound. When we utter the word “Shiva,” it is the freedom of the uncreated, the liberation of one who is not created. It is almost like on this planet, the sound “Shiva” emanates from this place. For thousands of years, people have experienced that space as a reverberation of that sound. This is also a place that has witnessed thousands of Yogis and mystics of every kind. When I say every kind, you cannot imagine those kinds. These are people who made no attempt to teach anything to anyone. Their way of making an offering to the world was by leaving their energies, their path, their work – everything – in a certain way in these spaces.show more

If you ever get the chance to go to... Normandy, take it. Don't just visit it-take your time and let it sink in, because it is one of the most humbling experiences I've ever had. Standing there, looking out across those beaches, you can almost feel the weight of what happened there. It's hard to fully understand what those soldiers went through until you're standing in that place, realizing the courage it took just to run toward that shore. The beauty of Normandy is quiet and powerful, but so is the sacrifice it represents. The rows of white crosses, the history in the ground, the silence in the air-it all reminds you that freedom came at a tremendous cost. It's the kind of place that stays with you long after you leave. It makes you grateful, reflective, and a little more aware of how much was given for the life we live today. Normandy is more than a battlefield. It is a lesson in sacrifice, bravery, and remembrance. 🙏🇺🇸🙏show more

🎥 + 💭: sinothando "There’s something almost unreal about... thresher sharks. 🦈 That impossibly long tail, the slow and graceful way they move through the blue. It looks like an animal from somewhere else. Seeing one takes patience. They spend most of their time deep, and the encounters happen early, before sunrise, at cleaning stations on seamounts where they rise up to get worked over by wrasse. You get in the water in the dark and you wait. And for all that presence, a thresher is shy. They spook easily, they keep their distance, and they pose no threat to a diver. What they do matter to is the reef itself. Predators like this keep the whole system in balance. A quiet reminder that the most extraordinary animals are usually the most misunderstood." #MarineMonday #ThresherSharkshow more

The pump feels like growth. The muscle is visibly... bigger in the mirror. Brain says: "Look at it. That's why I came here." The pump is blood pooled in a muscle from repeated contractions restricting venous return. The veins fill faster than they drain. The muscle inflates. Growth happens when heavy load is taken close to failure, triggering protein synthesis over the next 24 to 48 hours. The pump is not part of it. You can get a massive pump from 30 reps of 2kg lateral raises. The growth stimulus is approximately nothing. You can get almost no pump from 5 heavy barbell rows. The growth stimulus is everything. The damage is in the template. Chasing a pump means high reps and short rest, which produces enormous junk fatigue for very little growth signal, and quietly trains you to judge a session by feeling instead of by the bar getting heavier. You walk out pumped. You walk out tired. The bar has not moved in six months. The mirror after the workout is showing you fluid. The mirror six months later is showing you load. Train for the second mirror.show more

Before a storm actually breaks, the signs contradict each... other. The pressure drops but the sky is clear. The air goes still while the water gets restless. Animals move before there's anything to see. Nothing agrees, and yet everything is responding to the same thing. That's this market. The data is contradictory on the surface, but underneath, the readings are all reacting to the same building pressure. Most people wait for the sky to change. By then it's already raining. So let's go through the readings one at a time. Because the pressure is telling us a storm is brewing... 🧵show more

Apparently, I saw this video online and I decided... to share. What this worker is applying is called bitumen, or what many of us know as bituminous coating. Most people think a wall is a solid, impenetrable block, but in reality, it is more like a sponge. Concrete and blocks have microscopic pores that pull water from the earth through a process we call capillary action. This thick black substance is the shield that stops that water from climbing up into the house. It is not about making the wall look good because this part will be buried under the dirt forever. It is about creating a skin that water cannot breathe through. When do you need to do this? The need for this arises because the soil is a very aggressive environment. Water is not your only enemy.. The ground also contains salts and sulfates that want to eat away at the cement. If this moisture finds its way to the steel bars inside the columns, those bars will start to rust. And when steel rusts, it expands, and that expansion is what cracks the concrete from the inside out. This coating is the only thing standing between your foundation and that kind of slow destruction. Thats is why if you see wet patches at the bottom of your walls inside your house, it usually means someone skipped this step or did it poorly during construction. You can apply this anytime you are building parts of a structure that will stay in contact with the ground. It is common in areas where the water table is high or where the soil stays damp for most of the year. This is a one-shot opportunity. Once you backfill the soil, you can never go back to fix it without a lot of expense and a lot of digging. It is about having the foresight to protect the heart of the building while it is still exposed. Please don’t ignore this if you need to. If you ignore it now to save a bit of money, you will be funding the future decay of your own home. I hope this helps.show more

I tried the 220° FOV #VirtualReality optical system by... Hypervision, which employs two micro-OLED displays per eye. It is incredibly immersive, and I describe all my impressions in my latest article: The thing that surprised me the most is that the "seam" between the two lenses becomes almost invisible when you put your eyes in. And the company claims it can even do better than this. Will we see this soon in some consumer VR headsets? It is actually a bit too expensive (just the cost of the displays is $1.5K!), but hopefully it could be integrated in enterprise ones... Read the article and let me know what you think about it! #VR #technologyshow more

This is what happens when you stop waiting for... the perfect shot—and start creating it. Featuring Venom: The Last Dance and Torchlight technology for real-time visualization.show more

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.show more

For the enemy this is a collapse of its... offensive plans on the Lyman axis We converted BTR-60s into kamikaze robotic systems, packed them with explosives, and it was those that smashed the enemy’s most complex fortifications.show more

13 SECONDS ON A BOAT AT NIGHT. THE STREAMER... IN IT PROBABLY DIDN'T CUT, CAPTION OR POST A SINGLE VERSION YOU'LL SEE OF IT TODAY. Pink deck lights. Black water behind the rail. Clavicular, a girl with red braids leaning in, a friend at the edge of the frame who can't stop laughing. Nothing really happens. That is exactly why it travels. A moment this small used to disappear inside a four-hour stream. Now it gets pulled out within hours. > Someone cuts the 13 seconds. > Someone adds black bars and a caption built to start an argument. > Then accounts that have never met him repost it, each with its own caption, and whichever one makes the comments fight the hardest wins. That is clipping, and plenty of big streamers now run it on purpose. Open programs pay anyone a few dollars per thousand views their clips pull in. The streamer gets reach he never filmed for. The clippers get paid by the view. And the part that actually makes you stop scrolling, the caption, is usually written by a stranger who was never on the boat. Next time a clip makes you angry in the first second, read the caption before you watch. That is where most of the work went.show more

One of the worst things you can ever do... is tell a child that he can never be good enough and that his worth will always mean nothing. The caste system does exactly this. Hearing such sentences even one time can destroy their lives, and they will spend the rest of their lives in a state of anxiety. They will succumb to perfectionism, trying to prove their worth even in meaningless things. They will no longer be able to relax or chill. They will always try to overcompensate. The caste system is one of the most evil systems ever conceived by humankind. And yes, anyone who advocates it, validates it, or even slightly leans toward it is my enemy. I will have no respect for you or your upbringing. This is my stand, and I will take these words to my grave. This is the bare minimum. Everyone must condemn the caste system and try to abolish it. Otherwise, you are a disgusting human being. Thank you ప్రశ్న for this ♥️show more

Doge, Pepe, and Shib all crashed 85-95% after their... initial run ups. Troll is currently right around this mark. Many will wait for a dip to bid, thinking they have missed the “pump”. Nobody has seen a pump. Every single time $Troll gets going(has had 2 legs thus far), it runs harder than anyone believes it can simply due to the fact that it is a top 3 meme ever and subconsciously people realize it deserves to be in the billions. The third leg will be no different and it will make the first 2 look like chump pumps. It is one of if not the only meme left that has this kind of reflexivity and has been around for over a year. Buy as much $Troll as you can in the coming months. When risk on comes back fully, you will see Troll run like you have not seen a coin run in a long time. People have forgotten what a worldwide, known meme can do because they trade niche memes all day, they will be reminded of what we are here to begin with. Trade less, $Troll more.show more

I got an up-close look at the engineering INSIDE... the new Tesla Roadster at yesterday’s unveil, and it’s pretty crazy. After watching this thing drive upside down, launch into the air, and do flips, I got to see the actual hardware that makes it all possible. 1/ The Electric drive unit is the heart of the Roadster’s electric powertrain, delivering power directly to the wheels. 2/ The battery pack has rows of cylindrical battery cells, with cooling systems and electrical connections running throughout. This is what powers the car before the rocket tech comes into play. 3/ The rocket thrusters has multiple cold-gas nozzles. Tesla says the four main rear thrusters blast compressed air faster than the speed of sound, producing more than 80,000 newtons of thrust. 4/ The SpaceX-inspired pressure tanks has two massive carbon-fiber-wrapped pressure vessels with a combined capacity of 600 liters, holding approximately 250 kg of compressed air. And the wild thing is the Roadster can recharge its own air supply, no special rocket fuel is required. 5/ An active rear wing has a variable-pitch wing that automatically adjusts downforce depending on what the car needs. It allows it to get more grip when cornering, less drag when going fast. 6/ The underbody engineering is the hardware underneath that brings everything together, including the systems that help the Roadster stick to the ground and launch into the air. And then there’s the fan suction system, which Tesla says can generate up to 2 g’s of suction force, enough to hold the car upside down. Tesla and SpaceX have built an electric sports car with a battery, electric motors, rocket thrusters, high-pressure air tanks, active aerodynamics, and a suction system powerful enough to let it drive upside down. And yesterday, I watched it actually happen with my own eyes… I’ve seen some incredible engineering from Tesla over the years, but getting this close to the hardware and then seeing what it can do was on a whole another level. This is what happens when you bring together some of the best automotive and rocket engineers in the world and let them push the limits of what’s possible. Great job Tesla! 👏show more

when it happens. it will happen in a flash.... but those of us who are here now. will remember what it took to get there. the blood. the sweat. the grind.show more

This is one of the nicest things about China:... whatever happens to you, you can always count on people's solidarity. This is what just happened to us. We wanted to park our RV right next to Hulun lake for the night but stupidly managed to get it stuck in the sand. Impossible to drive out anymore 😓 Immediately, and I mean immediately, people around us started to pitch in to help. Luckily it so happened that a group of ex-PLA soldiers were having a get-together barbecue 100 meters away from us. They got told about our issue, stopped their barbecue and came to help. They told us "don't worry, no matter what we'll get you out, it's just a matter of time". Before we know it, one of the guys takes the wheel of the RV and the others start pushing. In 5 minutes, job done! RV unstuck and the guys get back to their barbecue. The Chinese are often depicted as cold and distant but my consistent experience is that they're one of the kindest people in the world, always ready to help a fellow human in need!show more