An ingine or motor is a machine designed tae convert energy intae uisefu mechanical motion. Heat ingines, includin internal combustion ingines an freemit combustion ingines (lik steam ingines) burn a fuel tae creaut heat, that then creates motion. Electric motors convert electrical energy intae mechanical motion, pneumatic motors uise compressed air an ithers — lik clockwirk motors in wind-up toys — uise elastic energy. In biological seestems, molecular motors, lik myosins in muscles, uise chemical energy tae creaut motion.
- "Motor". Dictionary.reference.com. Retrieved 2011-05-09.
a person or thing that imparts motion, esp. a contrivance, as a steam engine, that receives and modifies energy from some natural source in order to utilize it in driving machinery.
- Dictionary.com: (World heritage) "3. any device that converts another form of energy into mechanical energy so as to produce motion"