The Gramme dynamo was an electrical generator patented in 1870 by Belgian engineer Zénobe Gramme[?] (April 4, 1826 - January 20, 1901). The design, using a ring armature[?], was an improvement on earlier dynamos and helped usher in development of large-scale electrical devices. In 1873 it was discovered that the device could be reversed to serve as a motor.
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!
... Contents
Jordanes
Jordanes or Jordanis was a 6th century historian. He was an Ostrogoth and was a notary of Gothic kings in Italy. At the time of ...