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Gravity powered devices => Gravity powered devices => Topic started by: iacob alex on April 08, 2021, 03:27:18 AM

Title: Evolving a simple game...
Post by: iacob alex on April 08, 2021, 03:27:18 AM
....as you can see at :
    https://youtu.be/UVB_Utm3dFk
    https://en.m.wikipedia.org/wiki/Pen_spinning#/media/File%3APen_spinning_-_Fingerpass_Normal.gif (https://en.m.wikipedia.org/wiki/Pen_spinning#/media/File%APen_spinning_-_Fingerpass_Norma.gif)
....from a manner to manipulate a simple object into a self-spinning one ?!
    We will replace the pen with a tube , attached to a pivot. Inside the tube we have a free sliding mass/bar and two springs.
    Now , the challenge : to obtain a self-accelerated spinning motion of this simplej arrangement (rotating tube/"pen" ) due to a continuous unbalance of gravity and rotational inertia...
    Al_ex
Title: Re: Evolving a simple game...
Post by: iacob alex on April 08, 2021, 08:10:32 PM
.....is related to a well known desk toy :
     https://theswingingsticks.com/how-the-swinging-sticks-works (https://theswingingsticks.com/how-the-swinging-sticks-works)
     The first proposal ( https://overunity.com/18541/developing-a-successful-game (https://overunity.com/18541/developing-a-successful-game) ) was to take out the electromagnetic "assistance".


     This time the challenge implies to play a possible single "self" rotating tube/"stick" with an oscillatory mass inside ( a free sliding "to and fro" mass/rod and two springs ) , due a continuous gravity unbalance and centrifugal switch every half-turn.
      Take a look at :
      https://overunity.com/18407/higher-and-speeding-up/ (https://overunity.com/18407/higher-and-speeding-up/)
      Al_ex.