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So on our Math Dad versus Science Mom series, he has given me a lot of logic
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puzzles, but today I'm going to give him a challenge. You ready for this? It's
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called the "chair challenge".
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So I'm gonna set up our camera right here and then here's how it works.
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I'm going to face the ball with my feet directly to the wall and then I'm gonna
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take two steps back. Toe to heel. Toe to heel, and then we're gonna slide the
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chair in front of me, and I'm going to bend over. You need to be pretty close to
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a 90 degree angle and have your head on the wall. The top of your head should be
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on the Wall. Pick up the chair and then stand up. That's all there is to it, and
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as you can see from my demonstration it's not very difficult and now I want
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to see if you can do it. Ok. Doesn't look too bad.
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One. Two. Slide the chair in front. Top of your head on the wall. Lift the chair and stand up.
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Science Mom for the win!
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What do you think is going on? You have tiny feet. Yeah, so my feet
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were putting me further away from the wall, so I had less leverage. So if you
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watch Math Dad and me, we have our feet next to the wall and then I takes two
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steps back and he takes two steps back. He's a few inches farther back and that
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might not seem like it makes a big difference but when you have a fulcrum
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and you're trying to lift up from your waist being that much further back
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makes an enormous difference.
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So do you think you could pick it up if you were closer? Yeah! All right let's try.
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Math Dad's answer about the feet is essentially correct this exercise has everything to do with your
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center of mass, and it turns out that being just a few
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inches farther back from the wall makes all the difference in the world as to
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whether this is possible or impossible for you to do. And women, in general, tend
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to have slightly smaller feet in proportion to their body height than men
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so most women are able to do this exercise where most men cannot simply
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because their feet size puts them just far away back from the wall where it
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becomes an impossible challenge. And then if you have a more muscular torso and
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more body weight in your upper body this also makes this a little bit more
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difficult and impossible to do.