Objective: Determine the dynamic viscosity of an aqueous solution of glycerine
Dynamic viscosity, the coefficient of proportionality between velocity gradient and sheer stress in a liquid, characterises how difficult it is for an object to flow through the liquid. This can be measured using a falling sphere viscosimeter of a type designed by Höppler. It is also possible to make temperature- independent measurements in conjunction with a circulation thermostat. Measurements are made in an experiment involving an aqueous solution of glycerine. This allows the way that viscosity depends on temperature to be described by the Andrade equation.
![Experiment: Falling sphere viscosimeter, Supplement, 8000574 [UE1080350S], Mechanics of Liquids and Gases](/imagelibrary/UE1080350S/UE1080350S_01_Experiment-Falling-sphere-viscosimeter-Supplement.jpg)
![Experiment: Falling sphere viscosimeter, Supplement, 8000574 [UE1080350S], Mechanics of Liquids and Gases](/thumblibrary/UE1080350S/UE1080350S_01_1200_1200_Experiment-Falling-sphere-viscosimeter-Supplement.jpg)
![Experiment: Falling sphere viscosimeter, Basic equipment (230 V, 50/60 Hz), 8000573 [UE1080350-230], Mechanics of Liquids and Gases](/thumblibrary/UE1080350-230/UE1080350-230_01_140_140_Experiment-Falling-sphere-viscosimeter-Basic-equipment-230-V-5060-Hz.jpg)
![Pocket Measuring Tape, 2 m, 1002603 [U10073], Measurement of Length](/thumblibrary/U10073/U10073_01_140_140_Pocket-Measuring-Tape-2-m.jpg)
![DC Power Supply 20 V, 5 A
(230 V, 50/60 Hz), 1003312 [U33020-230], Power Supplies](/thumblibrary/U33020-230/U33020-230_01_140_140_DC-Power-Supply-20-V-5-A-230-V-5060-Hz.jpg)
![Projectile Launcher, 1002654 [U10360], Oblique throw](/thumblibrary/U10360/U10360_01_140_140_Projectile-Launcher.jpg)
![Clamp for Projectile Launcher, 1002655 [U10361], Oblique throw - Accessory](/thumblibrary/U10361/U10361_01_140_140_Clamp-for-Projectile-Launcher.jpg)
![Universal Clamp, 1002830 [U13255], Clamps](/thumblibrary/U13255/U13255_01_140_140_Universal-Clamp.jpg)
![Set of 15 Safety Experiment Leads, 75 cm, 2.5 mm², 1002843 [U138021], Circuits](/thumblibrary/U138021/U138021_01_140_140_Set-of-15-Safety-Experiment-Leads-75-cm-25-mm.jpg)
![Wimshurst Machine, 1002967 [U15310], Electrostatics](/thumblibrary/U15310/U15310_01_140_140_Wimshurst-Machine.jpg)
![Set of 5 Slit and Hole Diaphragms, 1000607 [U17040], Apertures, Diffraction Elements and Filters](/thumblibrary/U17040/U17040_01_140_140_Set-of-5-Slit-and-Hole-Diaphragms.jpg)
![Accessories for Spring Oscillations, 1000703 [U56003], Mechanical Waves](/thumblibrary/U56003/U56003_01_140_140_Accessories-for-Spring-Oscillations.jpg)
![Set of Riders for Rulers, 1006494 [U8401570], Measurement of Length](/thumblibrary/U8401570/U8401570_01_140_140_Set-of-Riders-for-Rulers.jpg)
![Optical Bench K, 1000 mm, 1009696 [U8475240], Kröncke Optics](/thumblibrary/U8475240/U8475240_01_140_140_Optical-Bench-K-1000-mm.jpg)
![Clamp K, 1008518 [U84755401], Kröncke Optics](/thumblibrary/U84755401/U84755401_01_140_140_Clamp-K.jpg)
![Convex Lens K, f = 100 mm, 1010300 [U8475911], Kröncke Optics](/thumblibrary/U8475911/U8475911_01_140_140_Convex-Lens-K-f-100-mm.jpg)
![Set of 4 Image Objects, 1000886 [U8476605], Apertures, Diffraction Elements and Filters](/thumblibrary/U8476605/U8476605_01_140_140_Set-of-4-Image-Objects.jpg)
![Flat Coil in a Rotatable Frame, 1013131 [U8496320], Induction](/thumblibrary/U8496320/U8496320_01_140_140_Flat-Coil-in-a-Rotatable-Frame.jpg)
![Pair of Clamps D, 1000977 [U8497181], Demountable Transformer D](/thumblibrary/U8497181/U8497181_01_140_140_Pair-of-Clamps-D.jpg)
![U Core D, 1000979 [U8497215], Demountable Transformer D](/thumblibrary/U8497215/U8497215_01_140_140_U-Core-D.jpg)
![Waltenhofen’s Pendulum, 1000993 [U8497500], Induction](/thumblibrary/U8497500/U8497500_01_140_140_Waltenhofen-s-Pendulum.jpg)
![Experiment: Lens equation (230 V, 50/60 Hz), 8000678 [UE4010100-230], Geometric Optics](/thumblibrary/UE4010100-230/UE4010100-230_01_140_140_Experiment-Lens-equation-230-V-5060-Hz.jpg)