4-Case 95% Ethanol High-Concentration Histology Alcohol, 1 Gallon Each Diameter_300mm the larger geometry pushing pole

the larger geometry pushing pole separation wide enough that field lines extend visibly beyond the magnet body for filing maps

Triple-range moving-coil DC voltmeter at 0-3V

Three brass conductors — sphere

The initial color of the compound returns upon cooling

Demonstrates electromagnetic induction and Faraday's law by stepping DC input into 25mm high-voltage sparks across adjustable electrode rods on an open chassis

4-Case 95% Ethanol High-Concentration Histology Alcohol, 1 Gallon Each Diameter_300mm the larger geometry pushing poleHigher concentration 95% ethanol in a 4 case of 1 gallon bottles, the histology grade fixative and dehydrating agent for tissue processing requiring stronger alcohol than 70% storage.