aving balls. At the opposite sides of the instrument and very in charge of the work and have been constructed in novelty of design is always a welcome acquisition. near to the revolving balls are placed two larger balls The experiments possible with a six or eight plate the gun factory. of polished… … Fig. 1.—STATIC ELECTSICAL HOTOB—BECIPB0CATIN6. ing rod and crank disk. holes in the straps engage these notches and lock the straps. The upper ends of Since the attractive and repulsive force of static electricity is far from powerful, it is essential that the bolts are pivoted to spring-pressed…
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