Mason's Wet and Dry Bulb Thermometer Subcategory_Bases and Rods this 125mL translucent polyethylene wash

this 125mL translucent polyethylene wash bottle features a flexible delivery tube for targeted solvent application

10-inch vacuum pump plate on an aluminum base with a stopcock and rubber seal

Demonstration electrophorus with a 9cm aluminum disc

1% accuracy on double silk-covered constantan coils

totaling 250 grams for suspension from pulleys

Mason's Wet and Dry Bulb Thermometer Subcategory_Bases and Rods this 125mL translucent polyethylene washPaired dry bulb and wet bulb thermometers on this Mason's hygrometer, calculating relative humidity from the temperature difference between the two readings for meteorology coursework.