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 »

Who invented the first battery operated watch?

In January 1957, Hamilton Watch Company debuted the Hamilton Electric 500, the world's first battery-operated watch, according to the Smithsonian. Research director John Van Horn, physicist Philip ... Read More »

Battery Operated Pedicure Tools?

You must have the right pedicure tools to make sure your feet look flawless and clean. Save the trip to nail salons and do your pedicure at home using the proper battery operated pedicure tools. Ma... Read More »