MOSTRA TUTTI Astronomy Electricity Fluids Heat Studies Measurement Mechanics Optics FluidsEudiometer MechanicsFalse balance ElectricityFaraday apparatus for rotating a magnet ElectricityFranklin board ElectricityFranklin boards ElectricityFranklin’s six-plate battery ElectricityFuse valves AstronomyGeocentric armillary sphere ElectricityGrenet cell AstronomyHeliocentric armillary sphere AstronomyHeliocentric armillary sphere ElectricityHenley’s luminous conductor ElectricityHoltz’s electrostatic machine ElectricityInduction coil ElectricityInduction coil for therapeutic use ElectricityInduction coil with rotary switch