Bernoulli umbra
Okay kiddo, so you know how when you blow on a balloon, it moves? That's kind of like what happens with the Bernoulli effect. The Bernoulli effect is when air moves over or around something, like an airplane wing or a piece of paper, and it creates different pressures on each side of that thing.
Now, let's talk about the Bernoulli umbrella. It's actually called a Bernoulli's principle umbrella or a reverse umbrella, but we'll stick with Bernoulli umbrella.
The Bernoulli umbrella is a cool contraption that uses the Bernoulli effect to make the umbrella stand up by itself, even though there's no pole holding it up!
Here's how it works:
The umbrella has a really unique shape. It's kind of like a cone that's been cut in half - the wide end is at the top, and the narrow end is at the bottom. The top of the umbrella is open, so you can look up and see the sky if you hold it over your head.
When you hold the Bernoulli umbrella above your head and the wind blows, the air flows over and around the curved surface of the umbrella. As the air moves more quickly over the curved top of the umbrella, it creates a region of low pressure above the umbrella.
But, there's no low pressure below the umbrella to balance it out. So, the high pressure air below the umbrella will push it up, just like when you blow up a balloon it pushes outwards to stay in shape.
And that's how the Bernoulli umbrella works! It's a really fun way to learn about science and how we can use the properties of air to do cool things.
Now, let's talk about the Bernoulli umbrella. It's actually called a Bernoulli's principle umbrella or a reverse umbrella, but we'll stick with Bernoulli umbrella.
The Bernoulli umbrella is a cool contraption that uses the Bernoulli effect to make the umbrella stand up by itself, even though there's no pole holding it up!
Here's how it works:
The umbrella has a really unique shape. It's kind of like a cone that's been cut in half - the wide end is at the top, and the narrow end is at the bottom. The top of the umbrella is open, so you can look up and see the sky if you hold it over your head.
When you hold the Bernoulli umbrella above your head and the wind blows, the air flows over and around the curved surface of the umbrella. As the air moves more quickly over the curved top of the umbrella, it creates a region of low pressure above the umbrella.
But, there's no low pressure below the umbrella to balance it out. So, the high pressure air below the umbrella will push it up, just like when you blow up a balloon it pushes outwards to stay in shape.
And that's how the Bernoulli umbrella works! It's a really fun way to learn about science and how we can use the properties of air to do cool things.