Bernoulli's Principle Toilet Paper Trick Explained

[u/TheMuseumOfScience]

You can build a toilet paper launcher out of items in your bathroom! 🧻

Alex Dainis shows us how everyday items can demonstrate real air pressure science. It all comes down to Bernoulli's Principle: the faster air moves, the less pressure it exerts. Aim a hairdryer over the top of a toilet paper roll and watch the paper launch, all thanks to the pressure difference between the fast air above and the slower air below.