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Waddling Duck Toy Physics

http://video_demos.colostat... Dr. Dave and Dr. Tom explain the physics of a wooden waddling duck toy involving friction, impact, energy transfer, and dynamics. More engineering and physics-rela...  
 
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carvingmadness (1 month ago) Show Hide
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where can i purchase one o these?
DrDaveBilliards (1 month ago) Show Hide
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Sorry, but I don't know. I will try to find out from the person who owns them.

If anybody else knows, please share the info.
Drdump1 (1 month ago) Show Hide
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oooops sori doc the straigh Roller Ramp like is here watch?v=StcY7bG1xzs
Drdump1 (1 month ago) Show Hide
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DrDaveBilliards It is possible for u to do a video on this duck running inside the same mass round hollow frictional spining turnell so that this duck can run without stoping ?
DrDaveBilliards (1 month ago) Show Hide
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The duck is much happier going down a straight ramp. :)
Drdump1 (1 month ago) Show Hide
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Eeeeh DR i don't understand why what's make this duck so sure he is not so happy when running insite the big round "guided track" or frictionless turnell which either ve lighter or same mass with him ??kakakakaka :)))
DrDaveBilliards (1 month ago) Show Hide
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A 3-D world is much too scary for a physics duck!
damaia101 (5 months ago) Show Hide
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is saying that the centre of gravity is directly above the back leg, thus making the duck stable in a flat surface.
DrDaveBilliards (6 months ago) Show Hide
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The video wasn't meant to be a comedy, but I'm glad you like it.
DrDaveBilliards (6 months ago) Show Hide
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"The center of gravity of the duck body is almost directly above the pivot point for that back leg."

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