Savart's toothed wheel siren School ammeter for demonstration purpose School voltmeter for demonstration purpose Scintillating picture Seebeck's siren Seebeck. Thermoelectric pile Series resistance box Set of eight attuned rosewood rods Set of six lenses on mouvable supports Set of pulleys Shower of mercury Silbermann's apparatus Single leaf condensing electroscope Single cylinder thermo-motor

s'Gravesande apparatus s'Gravesande. Ring and sphere Slip-ring rotor for three-phase asynchronous motors Sonometer Sound pipe with sliding graduated pusher Sound pipe with movable membrane Squirrel cage armature for asynchronous motors Standard lamp of Hefner type Steam whirl Steinheil's hollow prism Shunt