How to Maximize a Stearing Engine?
PROBLEM:
A candle is balanced on a horizontal needle placed through it near its centre of mass. When the candle is lit at both ends, it may start to oscillate. Investigate the phenomenon.
OBJECTIVE:
Maximize the output mechanical power of the system.
So I know that it is caused by the shift in mass though I would like to elaborate more.
Also, assume that the "normal" is when the candle is parallel to the ground.
When the wick lower than the candle burns the surface area is increased, therefore it burns faster causing the other end to become the heavier side. And so the cycle continues.
I've hit a bit of a dead end and don't know where to go on from here.
Any suggestions? Or more in-depth explanation on the phenomenon ?
Also what type of physics is this related to?
Thanks =D