Woodpecker Toy Physics

http://video_demos.colostate.edu/

Dr. Dave and Dr. Tom explain the physics of a wooden woodpecker toy involving friction, impact, and dynamics.

This toy was purchased at: http://www.usillygoose.com

A technical analysis can be found here:
http://www.zfm.ethz.ch/~leine/postdocmunchen_leine_glocker.htm
and in the technical paper:
Leine, R.I., Van Campen, D.H and Glocker, Ch., "Nonlinear dynamics and modeling of various wooden toys with impact and friction", Journal of Vibration and Control, Vol. 9, pp. 25-78, 2003.

More engineering and physics-related video demonstrations can be found here:

http://video_demos.colostate.edu/

Category:

Education

Tags:

• toy
• physics
• wooden
• woodpecker
• friction
• impact
• dynamics

[DrDaveBilliards]

Thanks for the comment. I'm glad you like the vids.

[AZNTHEORY]

its just a wood pecker humping a pole

[DrDaveBilliards]

@AZNTHEORY

Thank you for your astute and mature observation ... NOT!

[NigelLoller]

His beak doesn't have to hit the wire

[DrDaveBilliards]

@NigelLoller

Agreed ... but then it wouldn't be a wood (or wire) "pecker" anymore. :)

[oculairus]

wow, this is really cool and im super glad i found your page. i turn wood on a lathe and would love to try and make some of these simple entertaining toys. youtube needs more videos like this.

[NigelLoller]

Thanks for vid...given me lots of ideas!

[THSurvivalGear]

sine wave all the way man!

[PKHabs]

cool

[DrDaveBilliards]

FYI, I just add the URL of where it was purchased to the video description.