Рет қаралды 287,184
DENJIRO: Take a look at this. It's a model of a rifle that shows its mechanism. I'm going to put this paper bullet in the tube. By sending air in, we can fire the paper bullet. Now, let's try it. 1, 2, 3.
You can see that the bullet traveled straight at the balloon. The barrel has spirals inside, which are called "rifling." The bullet spins as it travels through the barrel, and it flies straight because it gets stabilized due to the gyroscopic effect.
Look at this toy I made. It's a dart made with a stick and a hand spinner. Let's throw this while the hand spinner is spinning. I'll throw it now. By spinning the hand spinner, the dart flew straight. This is also caused by the gyroscopic effect.
Here's another toy you throw around that I made by cutting up a plastic bottle. I added tape to one side as weight. I'm going to hold it like this and throw it by putting a little spin to it...
Next, let's use this launching device to compare the difference between throwing it with and without a spin. Here I go. Once again.
By putting a spin to it, the toy flies straight. It uses the gyroscopic effect, wherein an object maintains stability when it is spinning.
I hope energy will bring you all happiness. Our magic word is "Happy Energy!"