Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 730
FlG. 4. Connections of Boulenge Chronograph. CHRONOGRAPHS. 717 Schultz Chronoscope. The Boulenge chronograph measures velocity at one point only, but it isfrequently necessary to measure the velocity of the same projectile atdifferent points as in determining the laws of the resistance of the air… … FlG. 5. Schultz Chronoscope. For such purposes an instrument must be used which will give a scale oftime of such length that all the phenomena may be registered upon it. There are several instruments of this class, of which the best known is theSchultz chronoscope. In this instrument a drum (a),…
Electrical engineering
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