Boon of Energy Conversion

Its been a long time since I've written any technical stuff. Most of my earlier posts have been spirituality and movies. I was studying some alternator and motor theory today and that invoked the dormant-for-a-while energy conversion fascination in me. Its one of the many ones I got during my Mechanical Engineering study. Energy conversion is the most cruical means of existence for us, for mother earth, for the universe. We can't 'see' energy but can feel it, manipulate it, need it, use it; just like air. Isn't it fascinating to observe the chemical energy in fuel getting converted to mechanical energy which moves the vehicle you drive? Electrical energy getting converted to mechanical energy in a motor and exactly the opposite in an alternator also is as enchanting. Whatever form it is, energy is available to us. What would we do without it? A spine-chilling thought!