Bernoulli Effect Demonstrations - Fast Air Creates Low Pressure

[@the3Dartmaker]

No one is going to appreciate his great explanation 👍🏻.

[@dr.piercesphysicsmath9071]

Very kind of you to write this - thank you. Thank you for watching and I hope it helps others.

[@infootainment]

Perfect explanation sir, Now I know Bernoulli's effect well

[@dr.piercesphysicsmath9071]

Terrific! I'm very happy that this was helpful. Thank you.

[@captainkoskilol9057]

I was seeing a video of the Bernoulli's effect in play, but I had no clue what the effect was called until I saw this video. Thanks a bunch!

[@dr.piercesphysicsmath9071]

You are welcome. To be fair, both "Bernoulli effect" and "Venturi effect" relate to instances in which moving fluid causes pressure differences. Some folks debate subtle differences in the terms and how they are used. My goal here was to show examples of the phenomenon. Thanks for checking the video out. 👍

[@huseyinsencerarik]

Wow as a Turkish student, it even worked for me to understand the reason behind this principle. Thnaks sir

[@dr.piercesphysicsmath9071]

Excellent! Hello from California.

[@1waukesha]

Very cool!

[@dr.piercesphysicsmath9071]

Thank you! 👍

[@vader94]

Thank you sir

[@dr.piercesphysicsmath9071]

You are welcome! Thanks for checking out the video.

[@honestlyforreal6304]

I would think a curve ball would "lift" twards the forward moving side.?!

[@dr.piercesphysicsmath9071]

The air "follows" the rear moving side around the back of the ball and ends up thrown somewhat toward the forward moving side. Since the ball pushes the air toward the forward moving side, the air pushes the ball toward the rearward moving side.

[@ostypicgaming5725]

Why is fast air associated with lower pressure?

[@dr.piercesphysicsmath9071]

Two ways to think of it: (1) Air that has moved has left a void; other air will want to go there. (2l) bernoulli's equation P + pgh + (1/2)pv^2. = constant. If v goes up, P would come.down at same height h.

[@HangGlidingFlightSchool]

But WHY does fast moving air create low pressure? That is the one question no one ever answers when I try to learn more about the Bernoulli Effect. Physicists/engineers constantly say "fast moving air creates low pressure" but no one explains WHY that happens. You can do these same experiments in water, and it will behave the same way. But the density of air and water don't change when they move... Or do they? See, this is why I'm confused. If the molecular density of the air remains constant, then why does the pressure change? I just don't get it. The "how" is understandable, but the "why" baffles me.

[@ostypicgaming5725]

My question precisely, have you found an answer yet?