Tumbling Toy Physics

[wildwoodtoys]

Love these toys - the original toy used recycled salt and pepper cruets left over from other home-industries - really ingenious way of using simple components for completely different purposes! It was originally called a "roly-poly man" for obvious reasons. Also, manipulating the legs of the staircase alters the speed it descends at, until it looks like impossible stop-start movement.

[DrDaveBilliards]

@wildwoodtoys

Thanks for the info!

[UjjwalRane]

Great toy and an equally great explanation! The slow motion really added another dimension!

[DrDaveBilliards]

@UjjwalRane

Thanks for the comment.

[wildwoodtoys]

I run a little wooden toy stall and this is one toy I love demonstrating. It's a real eye-catcher, along with the walking animals. Amazing such an old design, the kids and adults are almost hypnotized by the movement. By adjusting the slope you can affect that speed of the tumble - bringing it to an almost stop. Fantastic. Love the demonstrations.

[kawistarr]

So cool, thanks for making this video

[DrDaveBilliards]

@kawistarr

Thanks ... and you're welcome!

[WolfgangKitteh]

Do you know where I could buy one of these?

[DrDaveBilliards]

@WolfgangKitteh

See the link in the video description.

[wildwoodtoys]

@WolfgangKitteh ...yes, follow my link home

[africanmaan]

this is cool i want to make something like this eventually in my life and that cat face is so funny in slow motion

[carvingmadness]

Thanks for your reply. Am hoping to find further descriptions presented by you in future. Am having my very inquisitive and intelligent watch your explanations and then we are attempting to build one as learning tool. Thus far we have built the duck and after much trial over center of gravity finally able to get it to work. Having difficulty however with using pvc coupling and two end caps to replicate your deal. Don't have heavy enough steel ball and am unsure where to get one so quest is on.

[DrDaveBilliards]

I'm glad the videos are helping to encourage you to learn and build stuff.

Good luck with the projects,

Dr. Dave

[carvingmadness]

nice presentation. i am currently making this exact toy due to seeing you two days ago demonstrate the physics of it. you noted the piece standing vertically that the two pegs are slightly offset from center vertical axis however, you didn't explain the significance of it. so, i am wondering how much offset and why. please explain.

[DrDaveBilliards]

The pegs are offset from the center-line to enable the internal ball to create an offset impact, allowing the tube to rotate about the peg. The offset is enough, along with the angle of the ramp, to allow the offset impact to create enough angular momentum to have the tube rotate to the next step. I hope that helps.

[qualitatserzeugnis]

Congratulations! this video has a clear explaination and the the amazing slow motion video, really very professional

[DrDaveBilliards]

Thanks.

[honkhonk77]

awesome

[hdgametrailers1]

cool