How can you pick up a ping pong ball from a table by using a funnel? Jason Lindsey with Hooked on Science says the answer may surprise you.
Ping pong ball
STEP 1: Place the funnel over the ball and blow through the stem of the funnel.
STEP 2: Continue to blow through the stem, lift the funnel, place your hand under the funnel, and then stop blowing.
Once you stop blowing through the funnel the ball falls out into your hand. As you blow through the funnel you create a lower pressure inside the funnel, especially where the stem is attached to the cone of the funnel. At this spot the fastest flow of air occurs. Bernoulli’s Principal says the faster the flow of air, the lower the pressure. This is the reason why the ball is sucked into the funnel. Go to hookedonscience.org for more experiments that might get you and your family “Hooked on Science.”