Regnault's Hypsometer Category_Glassware Built for the classic thermal-expansion

Built for the classic thermal-expansion demonstration

Half-wood-half-metal 200 by 30mm cylinder demonstrating thermal-conductivity differences through a wrapped paper that scorches over wood but stays uncharred over metal in flame

Teaches proper brushing technique through a 3x life-size jaw model with gums and oversized toothbrush

Fully enclosed EDM-80 moving-coil DC milliammeter measuring 0-500mA at plus-or-minus 2

Regnault's Hypsometer Category_Glassware Built for the classic thermal-expansionDouble walled copper cylinder hypsometer at 34 by 6cm on a steam boiler, with thermometer tubulure and glass manometer for calibrating thermometer upper fixed points under steam.