Encyclopedia > Rpm

Article Content

Rpm

Short for revolutions per minute, rpm is a unit for rotational speed. Gramophone or analogue disc records typically rotate with 33, 45, or 78 rpm. Aircraft motors can rotate with 8000 rpm. An automobile's motor typically makes between 1000 and 4000 rpm.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Brazil

... an influx of over 5 million immigrants in the late 19th, early 20th centuries, a period that also saw Brazil industrialise and further expand into its interior. Brazil ...