Perspex Friction Rod Type_Low Form exposing extraocular muscles alongside internal

exposing extraocular muscles alongside internal ocular anatomy for ophthalmology teaching

Used to set a tuning fork ringing without bruising its tines

and three cast iron support rings for ring-stand assemblies

Designed to measure Planck's constant through the photoelectric effect

Steam-sterilizable polypropylene pipette rack holds 12 pipettes horizontally for bench storage and autoclaving in molecular biology laboratories

Perspex Friction Rod Type_Low Form exposing extraocular muscles alongside internalLightweight and chemically stable, this Perspex acrylic rod gains a positive charge when rubbed with cloth, completing the triboelectric series alongside ebonite, glass, and nylon.