DENJIRO: Today, I have for you an experiment using this wheel. There is a metal rod attached to the axle of a bicycle wheel. When I try to lift the wheel by grabbing the end of the rod, it is too heavy to lift. The wheel weighs about 5 kilograms. You’d need some great strength to lift it up. However, we can easily lift the wheel using a certain method.
First, we’re going to spin the wheel using this machine here. The wheel is spinning fast. Now, let me hold just the tip of the rod. I’m able to hold it horizontally. Furthermore, if I twist my arm...
GIRL: Wow!
NARRATOR: He was able to easily lift the 5 kg wheel with one hand.
DENJIRO: Let me explain why I was able to lift the wheel. I have attached a piece of string to the wheel’s axle. Since the wheel is heavy, if I let go, naturally, the wheel falls down like so. Now, let me spin the wheel. I’m going to let go while the wheel is spinning.
GIRL: It’s horizontal!
DENJIRO: Even though the heavy wheel is attached to the rod, it is now spinning horizontally. The phenomenon where a spinning object tries to maintain its balance is known as the “gyroscopic effect.” Now I’m going to tilt the axel in the direction the wheel is spinning.
GIRL: The wheel moved up!
DENJIRO: The wheel is facing upward. Earlier, I twisted the axel to bring the wheel up from its horizontal position. The same thing is happening here. Twisting the rod makes the entire apparatus face upward. That’s why I was able to easily lift the heavy wheel.
I hope energy will bring you all happiness. Our magic word is "Happy Energy!"
Негізгі бет Lifting A Wheel with the Gyroscopic Effect! / Mr. Denjiro's Happy Energy!
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