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Every marine biologist learns the physics problem whale mothers face: How do you transfer liquid nutrients to your baby in an environment where liquids should instantly dissolve and disperse? Whale milk contains 30-50% fat content. Human milk is 4%. The evolutionary solution was to create something closer to toothpaste...

1,057,111 次观看 • 11 小时前 •via X (Twitter)

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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 次观看 • 16 天前

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 次观看 • 2 年前

Why is the national guard handing out coffee and donuts? The ret*rds among the Amerimutt right don't understand why the National Guard of Minnesota are giving out donuts and coffee to the locals in Minneapolis. They're too inexperienced to understand basic COIN principles. You must win over the locals. You have to meet with them, create every opportunity to connect. Make them like you and do it in a genuine, and human way. Once you do that 90% of your operations are basically done. This is how the US gets to stay in extremely dangerous places around the world, and the unit responsible for it is CAPOC. It's manned by extremely charismatic and intelligent officers. Every event and encounter is accounted for, studied and eventually every loss is turned into a win. In Vietnam era terminology it's called winning hearts and minds. The majority of humans, by their core nature, are unwilling to attack a friendly face. Furthermore, when they connect with someone, genuinely, they are unlikely to betray them most of the time. Stack these events and the likelihood of immersion with the locals becomes high. Then you facilitate your strategic objectives, without any interference from the locals, because they're already on your side. What you don't do is a road-side execution, fit for a terror organisation. This doesn't just lose you the locals but creates an environment where people around the world want to actively see you harmed, or lose. Every local you kill has hundreds of friends and potentially thousands of associations. Do this enough times and the entire city will want to hunt you down. So, while the e-right laugh at the competent national guard, they're busy winning, one hot coffee, one donut, one hand shake and one conversation at a time.

Korobochka (コロボ) 🇦🇺✝️

52,204 次观看 • 6 个月前

RULE #18 OF THE PRIMAL DIET Drink raw milkshakes. The raw milkshake is a recipe and one of the most important items on the Primal Diet. It reinforces the body, in particular the mucous linings, which are essential to protect bodily tissues from toxin damage. It strengthens parts of the body that other foods cannot, most of the time, as it is the best combination of foods to help the body restore mucus. Mucus protects the mucous membranes in the intestines, kidney, etc. Contrary to certain beliefs, mucus is not toxic. It is part of the body and remains internally. When mucus is expelled, is during detoxification, as a vessel that contains the toxins, but it is not a toxin itself, it protects from them. Toxins can deplete the mucus lining in the body, exposing tissues and organs to damage. This manifests in heartburn, being constantly drained, and other ways. So it is important to reconstitute the mucus layers that buffer those toxins, with milkshakes. Eating raw meat, raw fat, etc., should in theory give everything the body needs to make anything it needs. However, for most people, because of limitations induced by toxicity and long-term deficiencies, it often takes the combination of foods in raw milkshakes to let the body generate the appropriate amounts of mucus. It takes a whole raw egg, raw milk, and extra raw cream (that extra fat is necessary), with a bit of unheated honey to facilitate the digestion of this complex mix. Blend them together. Milkshake recipe with measurements:

The Primal Diet by Aajonus Vonderplanitz

10,579 次观看 • 1 年前

You Can Heal Yourself With Nature Movement - By moving our body we give strength to our muscles, promote blood flow and lymphatic flow enhancing the delivery of nutrients and the removal of waste products. We also create a piezoelectric effect that energises the system. Breathing - The delivery of air into the body through intentional conscious breathing is one of the most powerful modalities for nervous system renewal, mental peace and the delivery of oxygen to the body and the removal of carbonic acid buildup from the system Sunshine - It’s my belief that the more sunlight we absorb without sunscreen, the healthier we will become. A tan looks good because it is healthy and every part of your body thrives when sunlight touches it delivering blood flow as well as a high frequency and energy Grounding - Existing in connection with the earth’s electrical fields resets everything about our energy, reduces inflammation and promotes the movement of proper channels such as detox - it’s a fantastic practice to be connected to nature. Green light - When sunlight moves through trees and leaves we receive Green light by which is very healing and high in near infrared light, in fact it is one of the most healing modalities to absorb in your skin particularly if you have any abrasions or wounds - even more powerful than red light . Fresh air - The first nutrient, having fresh air that is rich in oxygen is absolutely imperative to health and you should always have all of your windows open in the house if possible when not outside. Positive thinking - Whatever you think, shall become and having and cultivating a positive mindset that intentionally brings you positive energy is one of the cornerstones to great health. You can think yourself into sickness and you can think yourself into health so choose to view the world in a positive light and so it’ll be for you.

⚡️🌞 Sol Brah 🌞🐬

14,430 次观看 • 1 个月前