Saturday 6 June 2015

Speedy Science - The Uncontrollable Arm

Another fun one, I thought everyone knew this trick but it appears not!

What you need:

Small or large person
A wall

Stand about 6 inches from the wall and push the backside of your hand against it...

Push as hard as you can, using your arm muscles for at least 30 seconds, longer if possible!

Which sounds easy but actually, it's not...

When the time is up relax you arm and put it back by your side, it will lift itself, just like magic. To make this more impressive you can utter a spell and demand that the arm rises!


  1. I remember doing that with both arms in a narrow doorway, as a kid. How about this one: While sitting down, make clockwise circles with one of your feet, on the floor. Then, while circling, write a big imaginary "6" on the desktop. What happens to your foot?! It is kind of like rubbing your belly while patting your head, but more perplexing. Great post!

  2. Where do you come up with this wild, fun, scientific stuff!? Your son is having a great time!

  3. Most of these are from a book I had as a kid, I haven't been able to track it down, Merlin's Magic Tricks or something like that, me and my brother loved it, it had some great easy tricks in it.

  4. That's fun experiment! I bet my son would love it! He's a human monkey! Loved the photos of your son!

  5. Such a simple but fun way to learn science!


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