Bernoulli's Principle It’s a key idea in fluid dynamics... named after Daniel Bernoulli. In simple terms: For a fluid flowing smoothly, an increase in the fluid’s speed happens at the same time as a decrease in pressure or a decrease in the fluid’s potential energy. Where: - P = pressure in the fluid - ρ = fluid density - v = flow velocity - g = acceleration due to gravity - h = height above a reference point Bernoulli's Principle basically says that for a fluid that's flowing smoothly, when its speed goes up, its pressure goes down. Think of it like this: fast-moving air or water pushes less sideways than slow-moving air or water. The energy in the fluid stays the same overall, but it shifts between motion, pressure, and height. That's why an airplane wing creates lift. The air moves faster over the curved top of the wing than underneath, so the pressure on top is lower. The higher pressure below pushes the wing up.show more

Bernoulli's Principle states that "fast moving fluid creates low... pressure". The guy created low pressure outside with the water and air moves from high pressure to low pressure so it quickly sucked out the air from the room which creates deficiency of oxygen in the room and fire went out.show more

Bernoulli’s Equation: P + ½ρv² + ρgh = constant... Mind-bending science that looks like pure sorcery! A lightweight paper loop floats and dances in a high-velocity air stream, seemingly defying gravity. Fast-moving air over and around the loop creates a low-pressure zone above and along its curved surfaces. Higher atmospheric pressure underneath pushes it upward, trapping it in the airstream. The Coanda Effect makes the air hug the curve of the loop, keeping the airflow attached and giving it remarkable stability. Gravity pulls down, while the pressure difference lifts up — creating a beautiful dynamic equilibrium. With nothing but moving air molecules, you can guide the loop wherever you want. Invisible forces at work!show more

Shockwaves can be caused by molecules moving in a... fluid (air) at a rate faster than the speed of sound. 343/m/sshow more

Archimedes' principle used in rescuing an elephant fallen in... a well. The rule says that any object partially or completely submerged in a fluid experiences an upward force equal in magnitude to the weight of the fluid displaced by the object.show more

in science class they called this scientific attribute a... "Non Newtonian fluid." It's a type fluid whose viscosity, or resistance to flow, changes when a force or pressure is applied to it. It's used in a lot of armor due to it's attributes to absorb/distribute shock.show more

Empty bottle caught in aerodynamic drag. As the truck... moves, it creates a low-pressure volume of space behind it — roughly shaped like a 3D teardrop — inside of which is less air pressure, which pulls the bottle in a perpetual spin behind the truck.show more

A vortex ring is called like this because a... fluid or a gas (air, water, smoke, etc.) spins around the imaginary axis line that forms the closed loop of its typical shape: this is well visible in this short videoshow more

Filled with non-newtonian fluid, these speed bumps behave like... a fluid when a car is under the speed limit. If the vehicle exceeds the speed limit, the fluid hardens and become a speed bump. [📹 Badennova SL]show more

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.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

A simple visualization of Fluid efficiency Like a server,... the same function instance can deal with multiple in-flight requests. Great for '↻ Thinking' LLMs. This is not a 'demo'. It's backed by real Fluid functions that report back their UUIDs (at 75% less cost.)show more

Inside a carburetor, air rushes through a narrow tube... called a venturi. This restriction forces the air to speed up, creating a sudden drop in pressure. That low pressure acts like a vacuum, drawing raw fuel through tiny jets where it instantly atomizes into a fine mist. This perfect air-fuel vapor is then sucked straight into the engine cylinders to ignite.show more

A hydraulic press (often called a hydro press) is... a machine that uses a hydraulic system to generate force for compressing, shaping, or crushing materials. It works based on Pascal’s principle, which states that pressure applied to a fluid is distributed equally in all directions.show more

To presume that there is an inherent flaw in... the RBR Macarena wing design due to the rotation of its flap leading to Max’s issues is fundamentally flawed because Hadjar hasn’t had an issue with it yet. It’s not mental gymnastics folks…it’s engagement bait…. And it doesn’t make sense from an aerodynamic standpoint…either. 😁 Simple thought exercise. Pressure is force acting on an area. Pressure builds as air molecules crash onto an aero surface e. Force acts perpendicular to the surface and can be resolved in drag force and downforce (or lift) force components. Where is the pressure on the RBR wing just before it closes? Don’t believe me? Also my mate Balaskó Dominik did an excellent CFD simulation on his LinkedIn page showing this exactly.show more

After a settled spell of weather, we see the... return of the jet stream this week. This fast moving ribbon of air high up in the atmosphere often dictates the UK's weather. A strengthening arm of the jet stream has the potential to develop a deep area of low pressure by Thursday.show more

I love the term #bombogenesis - coined in a... white paper in 1980. It sounds scary, but really it means “rapidly intensifying storm”. The reason it matters is, the faster a storm deepens (pressure drops) the stronger the wind gusts due to an imbalance in pressure - it forces air to move quickly. So when meteorologists say a #storm is a bomb it means something. In this case gusts over the ocean will reach 100 mph, with coastal gusts to #hurricane force 75 mph. #blizzard #blizzardof2026show more

🌊 $FLUID, DeFi’s most efficient layer, is now available... in the SwissBorg app. Fluid 🌊 is building one of the world’s most capital-efficient Connected Liquidity Layers, powering lending, borrowing, trading & beyond. You can now trade $FLUID with 15+ fiat and crypto pairs through SwissBorg’s Smart Routing Meta-Exchange for the best rates and liquidity. With a $6B+ market size and $120B+ in cumulative volume, it’s fast becoming the liquidity backbone of DeFi. 💰 Don’t forget, every trade = a Cashback in your SwissBorg wallet. Trade $FLUID and flow with the future of finance. 💚 #FLUID #SwissBorg #DeFishow more

I love your observation and it will make me... discuss the remarkable adaptations that prevents giraffes from passing out and suffering brain damage when bending to drink water and when standing up. ADAPTATION 1 Did you know that the distance from the giraffe's heart to its brain is about 2 meters or more? That's more than the average humans height! Pumping blood up to that great distance and working against gravity is not a joke! That's where the giraffe's heart comes in. A giraffe's heart is unique in several ways. First, it is quite large, weighing up to 11kg and measuring about 2 feet long, which is necessary to pump blood up the long neck to the brain. Second, it has thick walls to generate enough pressure to overcome gravity and push the blood up to the head. ADAPTATION 2 Now, let's move to the neck. Before discussing the incredible roles the valves in the jugular veins perform, let's look at what can happen without them, and then the solution. Problem I: When the giraffe bends down to drink, blood rushes downward to the head. Gravity pulls a huge volume of blood toward the brain, which could cause dangerously high pressure in the head and potentially burst vessels or cause other damage. Solution: They have one-way valves in the jugular veins (the large veins in the neck). These prevent blood from rushing backward uncontrollably into the head when lowered. These valves help regulate and slow the downward flow, avoiding a massive pressure surge to the brain. Also, the neck veins can act as temporary blood storage unit, storing over 1 litre of blood. This prevents blood from flooding the brain and also reduces the amount of blood returning to the heart. As a result, the heart pumps with lower pressure while the head is lowered. This buffers the high head pressure that gravity would otherwise cause. Problem II: When they raise their head up immediately after drinking, blood pressure drops sharply to the brain. A sudden drop could starve the brain of oxygen, causing fainting. This is similar to but much more extreme than the dizziness some people feel when standing up quickly. Solution: When the giraffe raises its head, that stored blood rushes back to the heart quickly. The heart responds with a strong, high-pressure beat that immediately pushes blood back up to the brain, preventing a dangerous drop in cerebral pressure. Impressive right?!show more

In aeronautics, a spoiler (sometimes called a lift spoiler)... is a device which intentionally reduces the lift component of an airfoil in a controlled way. Most often, spoilers are plates on the top surface of a wing that can be extended upward into the airflow to spoil the streamline flow. By so doing, the spoiler creates a controlled stall over the portion of the wing behind it, greatly reducing the lift of that wing section. Spoilers differ from airbrakes in that airbrakes are designed to increase drag without disrupting the lift distribution across the wing span, while spoilers disrupt the lift distribution as well as increasing drag.show more

175 frames of the same v10 concept test run... at lower fluid resolution. The apparent results are an underinundation, due to reduced fluid resolution. Also I'm not done tuning yetshow more