2025-03-18

[public] 68.6K views, 11.7K likes, dislikes audio only

AlphaPhoenix

Today I get to show off the results of my most recent high-speed filming obsession. I wanted to understand the airflow around a flying playing card - when you flick or throw a card across a room like a frisbee. Now in glorious 1500-7500ish fps video, we get wingtip effects, oscillatory vortex shedding, and gyroscopic effects. I hope you enjoy, cause I certainly had fun filming it!

Massive thanks to my top Patreon supporters!

birdiesnbritts

John Sosa Trustham

Vladimir Shklovsky

Aloysius Sparglepartz

Jason Whatley

Lohann Paterno Coutinho Ferreira

Jeffrey Mckishen

nothings

Eugene Pakhomov

Glenn Willen

R520

Nick F

Mirko Rener

Chris Connett

Tyler Filla

Chandler Freeman

Benjamin Manns

MPG

Seth Reuter

Danny Thomas

Toby T

Lucy Fur

tiaz

David Antoš

Chris Duvarney

Nick Wage

John T

Jack Serrino

Ethan Sifferman

Dit55

Ashley Hauck

Scott Schlesier

Jonathan Goforth

Steve

James K

Allan Adams

Chapters:

0:00 Intro - Cards fly and it's cool

1:44 Wingtip vortices

6:01 Conservation of momentum

9:30 Trailing instabilities

12:06 Turbulence

13:43 Gyroscopic precession

21:22 oops

Media Credits:

I Dunno by grapes is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/3.0/) http://ccmixter.org/files/grapes/16626