Description

Spare pack of ten low-mass pith balls sized for the standard pith-ball electroscope

Six-lens optics set of three double-convex and three double-concave glass lenses with ground beveled edges

Used to position a fine point object on the optical bench

Giant Newton's cradle at 12

Parallel and Series Circuit Demonstrator Pack Size_5 Spare pack of ten low-massFive bulb circuit demonstrator with 8 removable metal bars on a heavy base, letting students rearrange bars to convert between series and parallel topologies on the same set of lamps.

Exchange/Return Notes

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Parallel and Series Circuit Demonstrator Pack Size_5 Spare pack of ten low-mass

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