Bernoulli's Principle: High Velocity = Low Pressure

[paulflo12]

that shit cray

[Yuva782]

0:45 , doesn't that have something to do with surface tension?

[Ds4Dnvr]

@Yuva782 The water rushing by the ping pong ball at high velocity creates a low-pressure zone where the higher surrounding atmospheric pressure holds the ball in place

[itsmefergal]

Looking at your air video and looking at the roof box on my car I was wondering have the manufacturer got it facing the wrong way i.e. with the largest end at the rear of the roof (probably causing drag) and the wedge shape at the front of the car. I know it will look stupid with the big end facing forward and if will take a brave man to drive his car down the street and with it facing like an air-foil. Am I missing something with this air foil thingy!!

[metallica01032010]

the ping pong ball experiment is awesome, it's clear how the ball is "trapped" in a low pressure "tube" made by the air flowing fast

[LuvlyLucy5]

This video is very informative! It helped me to understand my physics class a whole lot better! Thanks for the help : )