These researches not only led to the production of dynamo-electric machines, but, in point of fact, Faraday actually produced the first dynamo.

At some cheap source of energy, say, at a waterfall, a water-wheel is employed to drive a dynamo or generator, thus converting mechanical energy into electrical energy.

Could some practical method be discovered by means of which the burning of coal liberates electric energy, instead of heat energy, an electric source would be discovered that would far exceed in economy the best dynamo in existence.

He took every opportunity Holroyd gave him of touching and handling the great dynamo that was fascinating him.

"Also II've ordered a dynamo and machinery.

The shock of the explosion had evidently thrown the dynamo out of gear.

To control the speed and keep it at that required for the purpose, we have only to properly gear the motor to another of the ordinary type for alternating currents, namely, an alternating-current dynamo used as a motor.

The energy of burning coal, through the steam-engine, working the dynamo, is far cheaper and more efficient for producing electricity than the consumption of metals through the voltaic pile.