Open Top Cylindrical Dropping Funnel with PTFE Key Stopcock, 1000mL, Ungraduated, Borosilicate Glass Subcategory_Slide Storage comparing thermal-radiation emissivity from surfaces

comparing thermal-radiation emissivity from surfaces at identical temperature

and a 1 mm pitch micrometer scale from 0 to 10 mm for lens measurement

Tracks a trapped gas volume against temperature in a graduated borosilicate U-tube with bulb set inside a 1000mL water-jacket beaker and stirrer

and 12 volts on this 2-amp battery eliminator power supply

Polished wood pipette rack holds 24 pipettes vertical in a 16

Open Top Cylindrical Dropping Funnel with PTFE Key Stopcock, 1000mL, Ungraduated, Borosilicate Glass Subcategory_Slide Storage comparing thermal-radiation emissivity from surfacesOpen top cylindrical dropping funnel in borosilicate glass holds 1000mL with PTFE key stopcock for large volume controlled liquid addition.