Regnault's Hypsometer Category_Glassware illustrating the primary-battery chemistry behind

illustrating the primary-battery chemistry behind the Leclanche cell — the historical predecessor of the modern dry battery

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

Built for the classic thermal-expansion demonstration

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

this cow digestive system model reveals ruminant anatomy

Regnault's Hypsometer Category_Glassware illustrating the primary-battery chemistry behindDouble 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.