How Do Battery-Operated Car Engines Work?

Answer Electric motors are among some of the simplest machines on Earth. With only two moving parts required, efficiency unmatched by any gas engine, an almost completely flat torque curve and power and r... Read More »

Top Q&A For: How Do Battery-Operated Car Engines Work

I have a graco battery operated swing and even with new batteries the motor will work for a few minutes then it just stops leaving the speed light on why would it do this?

I had the same problem. It is the motor inside the unit that is worn out. You can but a new motor unit from Graco's web site for $28. Kind of expensive though.Richard.

How to Change the Battery in a Battery Operated Pepper Mill?

Chefs and home cooks often use freshly ground pepper in their recipes. Manual pepper mills are not difficult to operate but an electric pepper mill can be used by one hand with the press of a butto... Read More »

Are Rolex watches battery operated?

Most Rolex watches operate using a mechanical self-winding movement which combines springs, gears and weights to keep time without using electronics of any kind. The Rolex Oysterquartz was the only... Read More »

How to Build a Battery Operated Clock?

Building a battery-operated clock is a fun project in which the design choices are practically limitless. While there are prefabricated clock kit models available that are battery-operated, the do-... Read More »