Hi PF! Given a hairdryer blowing vertically against gravity toward a ping pong ball the ping pong ball is suspended. The ball is relatively stable in the jet because the high velocity of the jet causes a decrease in pressure, causing the ambient air to mix, therefore keeping the ball in the jet rather than flying off sporadically. If the hair dryer is angled to the right, the ping pong ball still floats. Is this solely due to the above explanation or does the Magnus effect play a role? I was thinking that with the jet toward the right, the ball would spin clockwise, thereby forcing the wake of the ball to the bottom right. The equal and opposite force of the air would then push the ball to the upper left. As far as I understand, the Coanda effect forces the air to adhere to the curvature of the ball, but can someone explain why this happens and how this force of adhering to the wall differs from the Magnus effect (which seems to explain why the wake redirects)? Thanks!