Encyclopedia > Rotations per minute

Article Content

Rpm

Redirected from Rotations per minute

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

Father Damien

... who had virtually nothing to keep them warm or fed. After twelve years of ministering to the patients at the leper colony (see Kalawao County, Hawaii), he contracted the ...