2 ideas from Heinrich Gustav Magnus, each explained in a minute and credited to the original work. Free on Savvy.
A ball spinning as it moves through air drags a thin layer of air around with it, speeding up airflow on one side and slowing it on the other. The resulting pressure difference pus…
— Heinrich Gustav Magnus, Über die Abweichung der Geschosse
Spin a ball and it drags a thin layer of air around with it, speeding up the airflow on one side and slowing it on the other. That pressure difference pushes the ball sideways: the…
— Heinrich Gustav Magnus, Über die Abweichung der Geschosse