Self-moving hoop...

[iacob alex]

   ...can be an amusement toy ,for someone involved in self-motion, due to gravity.

      Thus,again take a look at :   www.geocities.com/iacob_alex/Some_Drafts/text013.jpg

      In this drawing,take off the "green" mass (M1)  and the "red" mass(M2).

      Right now,we have a simplified design:

        -a hoop,ring /playing as a rolling support

        -a connecting rod /playing as an eccentric mass

        -two lock-unlock systems

               All the Bests! / Alex

[iacob alex]

    ...might be perceived as a self-running "oddity".

       We can find, some essential features of the stepping creatures,on a horizontal surface ,but this time in and due to a "cascade"/gravity flow :

        -a particular manner of running,the  tumbling motion

        -two "legs",switching every step the CoG (connecting rod) out of balance,on the same direction

        - a body (hoop) that plays the charge-discharge sequence as an inertial "muscle"(gravitational fall moves into rotational energy).

                           All the Bests! / Alex

[iacob alex]

    ...might be perceived (like in a humorous cartoon...) as a common "oddity", by the rest of the natural creatures : it moves as us,the humans.

  The two-legs stepping motion,you know,is the act of moving by raising one foot after another ,and bringing every one down forward .

  In the most simplified understanding,we can picture a body-shape (with a CoG) and two stepping appendages.

  By the way:do we need more then two legs?!

                                                All the Bests! / Alex           

[iacob alex]

  ...  performs a particular fall of CoG in gravity :it takes more time than a direct,natural ,on the vertical line free fall.

       In this situation,we gain a certain amount of disponible "gratis work" ("effort"*long distance).

       A shorter-time,back trajectory,on the vertical line,can be a jump-up motion,as a smaller necessary "work"("effort" * short distance),so to have a "self motion"(to close the loop).

       So,it seems that ,we have a hope regarding a "difference work' that we can take out...but a new problem,also. .

       The problem reffers to the immersed/"burried' part of this "gratis work",that remains in the pivot/fulcrum,as a radial component of the gravity acceleration and rotational inertia.

        Can we take it out,for our advantage?

        As a whole,we have a "hidden",put out of sight,possible workable energy difference...

                   All the Bests! / Alex

       

[iacob alex]

     Hi  Jim !

I know a lot of things about trebuchet...

It throws a weight horizontally (distance).

My suggestion at the topic "Play trebuchet..." was ,to use it vertically (height).

Some of my designs applies this "modification".

One of them at :   www.geocities.com/iacob_alex/Some_Drafts/text048.jpg   

In my opinion,we can get self-motion ,if we organize an asymmetric power process.

If we have a more powerful fall ,then a set-up  back,we realize the self-motion and can take out "free" power.

The "falling chimney" phenomena (see topic)  can help us : faster than "g" fall vs. "g" jump-back.

         All the Bests! / Alex