Description
showing the inverse resistance-vs-temperature relationship through any standard ohmmeter circuit
producing oxygen's characteristic emission lines for spectroscope viewing of atomic-emission and quantum-energy levels
the lower-resistance higher-current option in the standard rheostat line
Polished non-warping wooden base with a built-in meter-scale carries a compass-box magnetometer
Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric
Ingen-Hausz Thermal Conductivity Apparatus Rod Material_Stainless Steel showing the inverse resistance-vs-temperature relationshipAluminum, brass, copper, lead, and iron rods at 150 by 3mm mounted along a hot water tank, tracking each metal's conductivity by the rate wax coatings melt from the heated end.
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