Bernoulli's principle and the Coanda effect stabilize a beach ball in a leaf blower's airstream. Students predict which ball — light or weighted — remains stable at larger tilt angles, …
A jet of compressed air blown across a bench lifts a drooping sheet of paper, demonstrating Bernoulli's principle. Students observe the counterintuitive result that fast-moving air above the paper creates …
Blowing air through a spool holds a card against it rather than blowing it away, demonstrating that high-velocity flow creates low-pressure regions (Bernoulli's principle). Works even with the spool inverted.
Demonstrates Bernoulli's principle: blowing air between two suspended ping-pong balls creates a low-pressure region that draws the balls together. The counterintuitive result challenges students' expectations that the airstream should push …
Demonstrates the Magnus effect: a spinning ping pong ball curves through the air due to the pressure differential created by its rotation. Students observe how spin direction determines curve direction, …
Demonstrates the Magnus effect: a spinning object falling through air experiences a lateral force due to asymmetric pressure from the interaction of rotational and translational flow. Connects directly to curveballs, …
Demonstrates how the rim of a flying disk provides aerodynamic lift that stabilizes flight. Three coffee can lids with different rim configurations are thrown like frisbees; the intact lid flies …
