| Stetzler, Trudy; Magotra, Neeraj; Gelabert, Pedro; Kasthuri, Preethi; Bangalore, Sridevi | Bureau International des Poids et Mesures BIPM |
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| The Science of measurement: A historical survey | Report of the Fifty-Second meeting of the British Association for the Advancement of Science |
Siemens supported his proposal by asserting that Watt was the first who "had a clear physical conception of power, and gave a rational method for measuring it.
| al, ed , Marks' Standard Handbook for Mechanical Engineers 11th Edition , Mc-Graw Hill, New York 2007 page 9-4• Lord Kelvin: His Influence on Electrical Measurements and Units | |
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