DENJIRO: Today, we’re going to learn about balance and tightrope walking. He’s keeping his balance by bending his body, stretching out his arms, and adjusting his legs to keep his center of gravity directly above the slackline. But with a little ingenuity, he can maintain his balance in a much easier manner. You may have seen people using really long rods in a circus. We’re going to use a rod with weights attached on both ends, which has the same effect.
GIRL: He was able to get across!
DENJIRO: He successfully walked to the other side. Holding a long rod increases the moment of inertia, so even if he starts to tilt, it takes more time to fall over. He’s able to stay on the slackline because there’s ample time to regain his balance.
Some say that when you lean to one side, you lean the rod to the same side and regain your balance as a reaction to that, but this is wrong. If you actually try it, you’ll see that this is not possible. If you look at the movement of the rod, you can see that he’s moving the rod horizontally to move the red mark in the middle right above the slackline. He’s regaining his balance by sliding the rod in the opposite direction he leans to.
Let me show you another way of maintaining your balance. It’s easy if you use rods like this to support yourself. When you lean to one side, you put the rod on that side down to push yourself back. However, we can’t call this tightrope walking, so let’s try using two large fans. Holding these fans and using air resistance make it easier to walk across the slackline. If you start to lose your balance, wave the fan and use the air as a support to keep your balance.
I hope energy will bring you all happiness. Our magic word is "Happy Energy!”
Негізгі бет The Science Behind Tightrope Walking / Mr. Denjiro’s Happy Energy!
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