正在加载视频...

视频加载失败

加载此视频时出现问题。这可能是由于临时网络问题，或视频可能不可用。

A flexible composite airfoil is an advanced wing design that can physically change its shape depending on the aircraft's angle of attack-the angle between the wing and the oncoming air. Unlike traditional rigid wings, these airfoils are built using lightweight composite materials that can bend and adapt in real... show more

Mechanical Knowledge

135,518 subscribers

17,577 次观看 • 18 天前 •via X (Twitter)

Anya Rossi• Live Now

Private livecam show

0 条评论

暂无评论

原始帖子的评论将显示在这里

相关视频

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.

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.

Aviation

412,745 次观看 • 10 个月前

$Shockwaves can become visible on an airplane's wing during a turn under certain conditions. Commercial jets cruise in the transonic regime (Mach 0.8–0.85), where airflow accelerates over the wing's curved upper surface, creating local supersonic regions despite the aircraft remaining subsonic. This forms a shockwave as air abruptly decelerates to subsonic speeds. The shockwave appears as a shimmering or wavy distortion due to sudden density changes that alter light refraction, similar to heat haze over a hot road. In a turn, banking increases the angle of attack and wing load factor, further accelerating upper-surface airflow and making local supersonic regions—and thus shockwaves—more pronounced. Passengers often report seeing these "dancing" shockwaves move, split, or intensify during maneuvers. Visibility requires sufficient humidity for condensation or good lighting/contrast for density refraction. In dry air, the shockwave may exist but remain invisible. Video and info via u/knowitokay$

Shockwaves can become visible on an airplane's wing during a turn under certain conditions. Commercial jets cruise in the transonic regime (Mach 0.8–0.85), where airflow accelerates over the wing's curved upper surface, creating local supersonic regions despite the aircraft remaining subsonic. This forms a shockwave as air abruptly decelerates to subsonic speeds. The shockwave appears as a shimmering or wavy distortion due to sudden density changes that alter light refraction, similar to heat haze over a hot road. In a turn, banking increases the angle of attack and wing load factor, further accelerating upper-surface airflow and making local supersonic regions—and thus shockwaves—more pronounced. Passengers often report seeing these "dancing" shockwaves move, split, or intensify during maneuvers. Visibility requires sufficient humidity for condensation or good lighting/contrast for density refraction. In dry air, the shockwave may exist but remain invisible. Video and info via u/knowitokay

Turbine Traveller

441,358 次观看 • 6 个月前

🚨 SCIENTISTS JUST CREATED A “LIVING” METAMATERIAL THAT CAN SELF-HEAL AND CHANGE ITS PROPERTIES IN REAL TIME. Researchers have developed a metamaterial made from living cells that can adapt its structure, heal itself when damaged, and even change its physical properties on demand. This is the first true bio-hybrid material with dynamic, life-like behavior. Why this matters: • Traditional metamaterials are static once made, they don’t change • This new material can respond to its environment and repair itself • It opens the door to self-healing buildings, adaptive medical implants, and living machines • It blurs the line between biology and engineering The deeper implication is enormous: We are entering the age of living materials objects that are not just built, but grown and evolved. The future of technology may not be made of metal and plastic… but of living, breathing, self-repairing matter. What would you build first with a material that can heal itself and adapt? Follow for more frontier physics and future technology.

🚨 SCIENTISTS JUST CREATED A “LIVING” METAMATERIAL THAT CAN SELF-HEAL AND CHANGE ITS PROPERTIES IN REAL TIME. Researchers have developed a metamaterial made from living cells that can adapt its structure, heal itself when damaged, and even change its physical properties on demand. This is the first true bio-hybrid material with dynamic, life-like behavior. Why this matters: • Traditional metamaterials are static once made, they don’t change • This new material can respond to its environment and repair itself • It opens the door to self-healing buildings, adaptive medical implants, and living machines • It blurs the line between biology and engineering The deeper implication is enormous: We are entering the age of living materials objects that are not just built, but grown and evolved. The future of technology may not be made of metal and plastic… but of living, breathing, self-repairing matter. What would you build first with a material that can heal itself and adapt? Follow for more frontier physics and future technology.

TheNewPhysics

14,115 次观看 • 1 个月前

The Airbus A350 is, without question, the most beautiful airliner gracing the skies today. A masterpiece of modern engineering and design, it combines elegance with efficiency. From every angle, the A350 is perfectly proportioned. Its long, graceful fuselage flows seamlessly into a set of gently curved wings that flex in flight like a bird in motion—an iconic silhouette that instantly sets it apart. The wingtips, with their signature upturned ‘sharklets,’ don’t just look stunning—they whisper of aerodynamic excellence and fuel-saving innovation. Its nose profile is distinctive yet refined, with a gentle curvature and a cockpit visor that gives the aircraft a futuristic, almost predatory presence. And unlike many other widebodies, the A350’s fuselage length is in perfect harmony with its wing span and tail height—there’s a visual symmetry that makes it appear poised, balanced, and utterly graceful, whether taxiing on the tarmac or soaring above the clouds. But it’s not just a pretty face. The A350 is a triumph of technology—built from over 50% carbon-fibre-reinforced composite, powered by next-generation Rolls-Royce Trent XWB engines, and brimming with advanced systems that make it one of the most efficient and capable long-haul aircraft ever built. In an age where function often overrides form, the A350 is a rare exception—a true flying work of art that proves beauty and brains can coexist. 📸 by ig/captainchris Not an ad

aircraftmaintenancengineer

30,458 次观看 • 1 年前

The science of levitation: The figure-eight shape of the paper creates joined wings. When it spins there are equal forces of lift and drag on each side, both moving in different directions The board creates a base for airflow to be maintained close enough to the paper

The science of levitation: The figure-eight shape of the paper creates joined wings. When it spins there are equal forces of lift and drag on each side, both moving in different directions The board creates a base for airflow to be maintained close enough to the paper

SuperSisi

19,386 次观看 • 4 个月前

📸 Wing-over-copter design: This concept, known as a “carrier copter,” is reportedly being used more frequently by Ukrainian teams. By using the lift generated by the wing, it reportedly extends the range of standard FPV drones from around 10 km to approximately 30–50 km.

📸 Wing-over-copter design: This concept, known as a “carrier copter,” is reportedly being used more frequently by Ukrainian teams. By using the lift generated by the wing, it reportedly extends the range of standard FPV drones from around 10 km to approximately 30–50 km.

Drone Wars

108,947 次观看 • 3 个月前

The pilot was unable to recover the aircraft from the roll, and by the time he realized what was happening, he was already too close to the ground. If the jet had a higher thrust-to-weight ratio, it might have had a better chance of recovering. Delta wings rely heavily on high angles of attack to generate lift at low speeds. This results in: High induced drag Significant vortex drag Rapid energy loss during turns Keeping the nose up to maintain a high angle of attack also reduces the pilot’s ability to see the ground, limiting situational awareness. Altitude warnings are then the primary source of awareness, but during airshows pilots often disregard these alerts because they know they will be performing low-altitude maneuvers. This is one reason we saw no ejection from the Tejas. Being at low speed, low altitude, in an under powered jet, operating a delta-wing aircraft under high drag and vortex drag, and having the nose slightly up, thereby reducing forward and downward visibility, means the flawed design of Indian Tejas contributed to the Tejas crash. I have frame freezed in the video where any other jet would have successfully got out of this roll but Tejas crashed. The machine betrayed the man and a pilot was lost. I will place the blame of Tejas crash on politics and designers.

The pilot was unable to recover the aircraft from the roll, and by the time he realized what was happening, he was already too close to the ground. If the jet had a higher thrust-to-weight ratio, it might have had a better chance of recovering. Delta wings rely heavily on high angles of attack to generate lift at low speeds. This results in: High induced drag Significant vortex drag Rapid energy loss during turns Keeping the nose up to maintain a high angle of attack also reduces the pilot’s ability to see the ground, limiting situational awareness. Altitude warnings are then the primary source of awareness, but during airshows pilots often disregard these alerts because they know they will be performing low-altitude maneuvers. This is one reason we saw no ejection from the Tejas. Being at low speed, low altitude, in an under powered jet, operating a delta-wing aircraft under high drag and vortex drag, and having the nose slightly up, thereby reducing forward and downward visibility, means the flawed design of Indian Tejas contributed to the Tejas crash. I have frame freezed in the video where any other jet would have successfully got out of this roll but Tejas crashed. The machine betrayed the man and a pilot was lost. I will place the blame of Tejas crash on politics and designers.

Irves

310,169 次观看 • 7 个月前

New Chinese hybrid aerial underwater vehicle (HAUV). — Nezha-SeaDart is a tail-sitting fixed-wing vertical takeoff and landing (VTOL) hybrid aerial underwater vehicle. — It can vertically take off and land from ground and water, cruise in the air with lift generated by the wings, and seamlessly cross the air-water boundary.

New Chinese hybrid aerial underwater vehicle (HAUV). — Nezha-SeaDart is a tail-sitting fixed-wing vertical takeoff and landing (VTOL) hybrid aerial underwater vehicle. — It can vertically take off and land from ground and water, cruise in the air with lift generated by the wings, and seamlessly cross the air-water boundary.

Clash Report

161,487 次观看 • 1 年前

Today I discovered there is a bird known as Standard-Winged Nightjar. The male has wing ornaments called "standards" that grow out of the middle of its wings during mating season.

Today I discovered there is a bird known as Standard-Winged Nightjar. The male has wing ornaments called "standards" that grow out of the middle of its wings during mating season.

Nature is Amazing ☘️

1,018,709 次观看 • 5 个月前

Today I discovered there is a bird known as Standard-Winged Nightjar. The male has wing ornaments called "standards" that grow out of the middle of its wings during mating season.

Today I discovered there is a bird known as Standard-Winged Nightjar. The male has wing ornaments called "standards" that grow out of the middle of its wings during mating season.

Nature is Amazing ☘️

2,014,673 次观看 • 1 年前

Slats increase lift and assist in slow flight by reducing the stall speed (speed at which the wing becomes incapable of producing enough lift). Together with flaps they are referred to as high lift devices and are used during takeoff, approach and landing.

Slats increase lift and assist in slow flight by reducing the stall speed (speed at which the wing becomes incapable of producing enough lift). Together with flaps they are referred to as high lift devices and are used during takeoff, approach and landing.

Ruth Karauri

21,643 次观看 • 1 年前

In Goma during a working visit to the DRC, we met members of the South African Air Force, who are part of the Air Wing of the Force Intervention Brigade under the UN Peacekeeping Force. We are inspired by their courage and mourn the losses they have endured. Condolences to the friends and families of the lives lost during this peace mission. These brave men and women embody our commitment to peace.

In Goma during a working visit to the DRC, we met members of the South African Air Force, who are part of the Air Wing of the Force Intervention Brigade under the UN Peacekeeping Force. We are inspired by their courage and mourn the losses they have endured. Condolences to the friends and families of the lives lost during this peace mission. These brave men and women embody our commitment to peace.

ANC SECRETARY GENERAL | Fikile Mbalula

85,819 次观看 • 1 年前

The amount of wingflex in a 737 wing during turbulence, wings can flex much more than most people realize.

The amount of wingflex in a 737 wing during turbulence, wings can flex much more than most people realize.

Aviation

183,239 次观看 • 7 个月前

When an Israeli Air Force F-15 landed safely with only one wing In 1983, during an Israeli Air Force training exercise, an F-15D "Baz" collided with an A-4 Skyhawk and completely lost its right wing; under normal circumstances the aircraft should have crashed instantly, but pilot Zivi Nedivi managed to keep it airborne by using the engines' tremendous thrust with full afterburner and balancing the pitch and roll through differential engine power. He kept the F-15 stable for about 10 miles on a single wing and then landed at nearly 500 knots, raising the nose to compensate for the missing lift. The incident became known in aviation history as the "one-wing landing miracle," showcasing both the F-15's extraordinary design strength and the pilot's remarkable skill.

When an Israeli Air Force F-15 landed safely with only one wing In 1983, during an Israeli Air Force training exercise, an F-15D "Baz" collided with an A-4 Skyhawk and completely lost its right wing; under normal circumstances the aircraft should have crashed instantly, but pilot Zivi Nedivi managed to keep it airborne by using the engines' tremendous thrust with full afterburner and balancing the pitch and roll through differential engine power. He kept the F-15 stable for about 10 miles on a single wing and then landed at nearly 500 knots, raising the nose to compensate for the missing lift. The incident became known in aviation history as the "one-wing landing miracle," showcasing both the F-15's extraordinary design strength and the pilot's remarkable skill.

Turbine Traveller

178,489 次观看 • 10 个月前

Airplane wings aren't some rigid chunks of metal: in fact, they probably have a bit more flex than you'd expect. This is the behavior of a Boeing 747's wing in a turbulence. It can move 6m up and down safely.

Airplane wings aren't some rigid chunks of metal: in fact, they probably have a bit more flex than you'd expect. This is the behavior of a Boeing 747's wing in a turbulence. It can move 6m up and down safely.

Aviation

10,824,557 次观看 • 3 年前

Airplane wings aren't some rigid chunks of metal: in fact, they probably have a bit more flex than you'd expect. This is the behavior of a Boeing 747's wing in a turbulence. It can move 6m up and down safely.

Airplane wings aren't some rigid chunks of metal: in fact, they probably have a bit more flex than you'd expect. This is the behavior of a Boeing 747's wing in a turbulence. It can move 6m up and down safely.

Chauhan

31,308 次观看 • 2 个月前

Modern vessels are now using intelligent wind sails to harness natural airflow and reduce fuel consumption. It might look like a return to old sailing days but this is powered by advanced engineering- with automated systems that adjust to wind direction for maximum efficiency.

Modern vessels are now using intelligent wind sails to harness natural airflow and reduce fuel consumption. It might look like a return to old sailing days but this is powered by advanced engineering- with automated systems that adjust to wind direction for maximum efficiency.

Science Simplified

22,118 次观看 • 2 个月前

Change the angle of the camera on an escalator and suddenly everyone is walking weird 😭

Change the angle of the camera on an escalator and suddenly everyone is walking weird 😭

no context memes

477,696 次观看 • 1 年前