Algodoo

Cool

Could you put up what is happening there? (Please, no Wikipedia Link)

@Nisheeth
Three pendulums A, B, and C are hanging on a string.
Their vibration is transmitted to each other via string.
(All pendulums are same so its "resonant frequency" is also same.)

This is not trick.
It is well known as "resonance" phenomenon in physics.
I recommend you to learn about "resonance" and "resonant frequency".

@ mori-d:
I knew it is some concept in physics. I probably will read it in the next semester.
I searched for it in Wikipedia, but most was beyond me at the moment.

But thanks!