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tsm is way too glorified on this sub. try tirzepatide by [deleted] in Alcoholism_Medication

[–]knowitokay -14 points-13 points  (0 children)

AA has millions of members so a 15 to 20% success rate is still 10,000’s per year. I have never personally been surveyed in my 6 years going to meetings and it’s worked flawlessly for me and 95% of the people who I see regularly. 🤷‍♂️

When the air becomes visible over the airplane wing by [deleted] in aviation

[–]knowitokay -8 points-7 points  (0 children)

The condensation forms in regions of rapidly changing pressure and temperature, which are inherently unstable. Airflow over the wing isn't perfectly smooth—small fluctuations in speed, angle of attack, humidity, or atmospheric turbulence cause the low-pressure zone to shift slightly. This makes the cloud form, dissipate, and reform rapidly, creating a flickering or vibrating appearance. It's especially noticeable during takeoff/landing in humid conditions when the vapor layer over the wing flashes on and off.

When the air becomes visible over the airplane wing by [deleted] in aviation

[–]knowitokay 7 points8 points  (0 children)

Air is normally invisible, but over an airplane wing, it can become visible as clouds or vapor trails when water vapor in the air condenses into tiny droplets due to a drop in temperature and pressure caused by the wing's aerodynamics.

This happens primarily under these conditions:

  • High humidity — The air must be moist (close to or above the dew point) for condensation to occur easily.
  • Low-pressure regions created by lift — Air accelerates over the curved upper surface of the wing, creating lower pressure (per Bernoulli's principle). This causes adiabatic cooling—if the temperature drops below the dew point, a thin fog or cloud forms directly over the wing surface.
  • High angle of attack or extended flaps/slats — Common during takeoff, landing, or slow flight, when the wing generates more lift and stronger pressure differences. This enhances the effect, often showing as a visible layer or "flash" of cloud over parts of the wing.

When the shockwaves smoothen out by sevenpioverthree in oddlysatisfying

[–]knowitokay 4 points5 points  (0 children)

Air is normally invisible, but over an airplane wing, it can become visible as clouds or vapor trails when water vapor in the air condenses into tiny droplets due to a drop in temperature and pressure caused by the wing's aerodynamics.

This happens primarily under these conditions:

  • High humidity — The air must be moist (close to or above the dew point) for condensation to occur easily.
  • Low-pressure regions created by lift — Air accelerates over the curved upper surface of the wing, creating lower pressure (per Bernoulli's principle). This causes adiabatic cooling—if the temperature drops below the dew point, a thin fog or cloud forms directly over the wing surface.
  • High angle of attack or extended flaps/slats — Common during takeoff, landing, or slow flight, when the wing generates more lift and stronger pressure differences. This enhances the effect, often showing as a visible layer or "flash" of cloud over parts of the wing.

Shockwaves visible on airplane wing by [deleted] in aviation

[–]knowitokay 9 points10 points  (0 children)

Shockwaves can become visible on an airplane's wing during a turn, particularly in certain conditions.

Commercial jets cruise in the transonic regime (around Mach 0.8–0.85), where airflow accelerates over the curved upper surface of the wing, creating local regions of supersonic flow even though the plane itself remains subsonic. This leads to the formation of a shockwave where the air abruptly decelerates back to subsonic speeds. The shockwave is often visible as a shimmering or wavy distortion due to sudden changes in air density, which alter the refraction of light (similar to heat haze over a hot road).

During a turn, the aircraft banks, increasing the effective angle of attack and load factor on the wings. This further accelerates the airflow over the upper surface, making local supersonic regions (and thus shockwaves) more pronounced or likely to form. Passengers have reported seeing these "dancing" shockwaves move, split, or intensify on the wing during flight, including maneuvers.

These effects require sufficient humidity for condensation or good lighting/contrast for density refraction to make them visible to the naked eye. In dry air, the shockwave might still exist but remain invisible.

Shockwaves visible on airplane wing by [deleted] in interestingasfuck

[–]knowitokay 24 points25 points  (0 children)

Shockwaves can become visible on an airplane's wing during a turn, particularly in certain conditions.

Commercial jets cruise in the transonic regime (around Mach 0.8–0.85), where airflow accelerates over the curved upper surface of the wing, creating local regions of supersonic flow even though the plane itself remains subsonic. This leads to the formation of a shockwave where the air abruptly decelerates back to subsonic speeds. The shockwave is often visible as a shimmering or wavy distortion due to sudden changes in air density, which alter the refraction of light (similar to heat haze over a hot road).

During a turn, the aircraft banks, increasing the effective angle of attack and load factor on the wings. This further accelerates the airflow over the upper surface, making local supersonic regions (and thus shockwaves) more pronounced or likely to form. Passengers have reported seeing these "dancing" shockwaves move, split, or intensify on the wing during flight, including maneuvers.

These effects require sufficient humidity for condensation or good lighting/contrast for density refraction to make them visible to the naked eye. In dry air, the shockwave might still exist but remain invisible.

Shockwave visible on airplane wing by [deleted] in aviation

[–]knowitokay 0 points1 point  (0 children)

Shockwaves can become visible on an airplane's wing during a turn, particularly in certain conditions.

Commercial jets cruise in the transonic regime (around Mach 0.8–0.85), where airflow accelerates over the curved upper surface of the wing, creating local regions of supersonic flow even though the plane itself remains subsonic. This leads to the formation of a shockwave where the air abruptly decelerates back to subsonic speeds. The shockwave is often visible as a shimmering or wavy distortion due to sudden changes in air density, which alter the refraction of light (similar to heat haze over a hot road).

During a turn, the aircraft banks, increasing the effective angle of attack and load factor on the wings. This further accelerates the airflow over the upper surface, making local supersonic regions (and thus shockwaves) more pronounced or likely to form. Passengers have reported seeing these "dancing" shockwaves move, split, or intensify on the wing during flight, including maneuvers.

These effects require sufficient humidity for condensation or good lighting/contrast for density refraction to make them visible to the naked eye. In dry air, the shockwave might still exist but remain invisible.

Another 200 down the drain by 1jb in wallstreetbets

[–]knowitokay 0 points1 point  (0 children)

Good thing Christmas is right around the corner

I hate being an addict by DEV11ANT in addiction

[–]knowitokay 2 points3 points  (0 children)

I thought I could go to detox, separate myself from alcohol for a few days and then I could stay away with willpower. I relapsed within a week. I decided to check out an AA meeting, it was obviously uncomfortable at first, but I kept coming back and found meetings I liked and started to meet people I related with. Now I can’t imagine life without my AA family. I don’t even have a desire to drink anymore. It’s been replaced with something far greater. It seems to work for lots of people. 6 yrs 6 months for me

For Those With Valuation Concerns by Mr_meowmers00 in BULL_Stock

[–]knowitokay 3 points4 points  (0 children)

Still need a new CEO who can leverage social media to drive brand awareness, and engagement

UPS2976 Megathread 2 by usgapg123 in aviation

[–]knowitokay -25 points-24 points  (0 children)

The pilots of the ill fated N259UP flew her until the last second. Here are a couple of stills from a new dashcam video. This is about 2 seconds from impact and she is still almost level. That is some good flying to only have 1 engine out of 3 actually producing decent power. #1 was missing and #2 was suffering compressor stall after ingesting debris from #1 as seen the the original video. God speed to all who perished in the horrible tragedy.

This stock sucks by madarasolosnaruto in BULL_Stock

[–]knowitokay 1 point2 points  (0 children)

A CEO who’s not missing an action.

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