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

A non-Newtonian fluid is a fluid that does not... follow Newton's law of viscosity, that is, it has variable viscosity dependent on stress. In non-Newtonian fluids, viscosity can change when under force to either more liquid or more solid.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

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

It's called a buffalo pause, it happens when it's... testing if the food is poisonous or safe to eat.show more

This liquid is so thick, it doesn't just flow........ It hesitate. This is a strange science of ultra- viscous fluid in action.show 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

Has the Referee or VAR made a poor decision?... Slowed it right down for you. Ball literally changes direction due to Saliba stopping it's momentum.show more

A powerful moment from Elissa Slotkin on abortion. #MISenateDebate... #MISen "It's not a talking point to women. It is our lives. It's whether we bleed to death in a parking lot. It's who and when gets to decide how we have a family, do not trust him."show more

After a day on the water, Manhattan was a... bit of a shock to the system. If this had happened in Miami, she probably wouldn't have even bothered to apologize. I like New York. It's classy. It's a whole lot of everything. #welcometonewyork #citygirl #latinashow more

This is not a call to violence—it's a call... to be ready for it. It's a call to be capable of it. Men of God are not harmless. They are peacemakers because they are capable. (Luke 22:36-54)show more

It's raining again in Gaza. Expect to see a... lot of this kind of contentshow 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

It's easy to have a side chat in Claude... Code on desktop. Just type /btw or use CMD+; and you're off to the races.show more

This clip is from 1982. Israel is a problem... since it's existence due to it's racist ideologyshow more

This clip is from 1982. Israel is a problem... since it's existence due to it's racist ideologyshow more

Courage isn't the absence of fear. It's a man... in a wheelchair refusing to be invisible or silentshow more