PM "acrobatics"...

[iacob alex]

.....or the circus show (Space wheel/Wheel of "death"....) simple mechanical equivalence,at:

www.youtube.com/watch?v=RCE_xM-f-Xs

Here,a single question or situation that presents uncertainty,perplexity,or difficulty:what is the "acrobatics" ,we can imagine for the mobile mass ?

All the best! / Alex

[rasselasss]

Simplicity,....this toy shown to us in the science class when i was 11 years old always comes to mind ...as you would say Alex its all in the detail ...intricate but simple.

[rasselasss]

http://cnx.org/content/m42235/latest/?c ... 406/latest

[iacob alex]

Hi !
You have a real game with gravity and inertia ,at :

www.youtube.com/watch?v=F_5z3VVqoJk&feature=related

...and a possible "copy-design" of the same game ,at:

www.youtube.com/watch?v=RCE_xM-f-Xs

The main feature of them is simplicity :minimum spare parts (fulcrum,heavy lever,a single mobile mass )...so no connection with intricacy (having many complexly arranged elements,comprehensible only with painstaking effort...),nor with the abstracts of a thermal machine ( Carnot cycle).

By the way,we play the same game (gravity......so many tags...),but with distinct mind "acrobatics":wheel vs. lever.

For me,simplicity is the first step for an easy comprehension...

All the best ! / Alex