We’re preparing our first demonstration of the Bernoulli Principle. This demonstration as it was described to us, would cause a beach ball to be suspended in the air, merely by the force of wind from the leaf blower. After seeing our teacher perform it, we attempted to suspend the beachball. Contrary to our procedure our leaf blower contained a battery and did not need an extension cord. After a few unsuccessful tries, we got the beach ball suspended in the air and began recording immediately.
.
Probably the most difficult and unrewarding of all demonstrations we wish to perform, the levitating paper ails us next. Though it didn’t appear so daunting when our teacher managed to expertly lift the ends of a paper simply by blowing over the top. Innumerous attempts at blowing the paper eventually ended in us successfully lifting the paper, by blowing over the top and catching all of its glory on camera.
.
This one always wows the spectators, a demonstration where we manage to keep a ball from falling by blowing downward instead of sucking upward. This demonstration is so visually mind boggling, that it is probably the best introduction or finale to the Bernoulli Principle. In this demonstration air blown through a straw is then sent down a funnel with a ball inside. As the air come flying out the edges, air from below comes rushing in. This causes an upward force on the ball that is greater than the suction of my lungs, in fact if I tried to suck on it instead the ball will fall.
.
The BBPBL demonstration just might revolutionize paintball guns as we know them. In this demonstration, we made a mess of my teacher's room using the movement of air at the end of a tube to send plastic balls shooting out from the bottom up. When quickly moving air blows over the top of the tube, the air from inside the tube quickly rushes up, taking the balls with it, as if it is some sort of vacuum.