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  • So on our Math Dad versus Science Mom series, he has given me a lot of logic

  • puzzles, but today I'm going to give him a challenge. You ready for this? It's

  • called the "chair challenge".

  • So I'm gonna set up our camera right here and then here's how it works.

  • I'm going to face the ball with my feet directly to the wall and then I'm gonna

  • take two steps back. Toe to heel. Toe to heel, and then we're gonna slide the

  • chair in front of me, and I'm going to bend over. You need to be pretty close to

  • a 90 degree angle and have your head on the wall. The top of your head should be

  • on the Wall. Pick up the chair and then stand up. That's all there is to it, and

  • as you can see from my demonstration it's not very difficult and now I want

  • to see if you can do it. Ok. Doesn't look too bad.

  • One. Two. Slide the chair in front. Top of your head on the wall. Lift the chair and stand up.

  • Science Mom for the win!

  • What do you think is going on? You have tiny feet. Yeah, so my feet

  • were putting me further away from the wall, so I had less leverage. So if you

  • watch Math Dad and me, we have our feet next to the wall and then I takes two

  • steps back and he takes two steps back. He's a few inches farther back and that

  • might not seem like it makes a big difference but when you have a fulcrum

  • and you're trying to lift up from your waist being that much further back

  • makes an enormous difference.

  • So do you think you could pick it up if you were closer? Yeah! All right let's try.

  • Math Dad's answer about the feet is essentially correct this exercise has everything to do with your

  • center of mass, and it turns out that being just a few

  • inches farther back from the wall makes all the difference in the world as to

  • whether this is possible or impossible for you to do. And women, in general, tend

  • to have slightly smaller feet in proportion to their body height than men

  • so most women are able to do this exercise where most men cannot simply

  • because their feet size puts them just far away back from the wall where it

  • becomes an impossible challenge. And then if you have a more muscular torso and

  • more body weight in your upper body this also makes this a little bit more

  • difficult and impossible to do.

So on our Math Dad versus Science Mom series, he has given me a lot of logic

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A2 US chair math challenge heel impossible mom

Chair Challenge Explained! Math Dad vs Science Mom

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    minami.kuo posted on 2019/12/11
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