Wooden Pipette Rack for 24 Pipettes, Vertical, 16.25" Electricity & Magnetism_Electricity & Circuits 25-inch Atwood machine with two

25-inch Atwood machine with two 2-inch blue-plastic pulleys on an aluminum rod

Visualizes linear thermal expansion through a fitted metal bar and gauge

with identical volumes across specimens for direct mass-density comparison

Topped with a large conductor sphere and a deflecting needle indicator

Needle valve and flame stabilizer deliver fine flame control on this liquid propane Bunsen burner for precision chemistry and biology heating work

Wooden Pipette Rack for 24 Pipettes, Vertical, 16.25" Electricity & Magnetism_Electricity & Circuits 25-inch Atwood machine with twoPolished wood pipette rack holds 24 pipettes vertical in a 16. 25 inch frame for draining, drying, and storage between uses at the laboratory bench.