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Vertical demonstrati	Electrostatic machi	Precision wattmeter	Rotating fields demo
Variometer	Leyden jar battery	Electric motor	Voltmeter
Leyden jar battery	Mirror galvanometer	Water turbine model	Water turbine
Water turbine	Viscocity apparatus	Pressure propagation	Balance after Mohr
Apparatus comparing	Apparatus after Hart	Schmidt's gyros	Rotational Inertia a