Description

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

reducing the need for separate tool types

Hand-cranked to convert mechanical work into electrostatic energy

tightened with an Allen wrench for constructing lattice frameworks on laboratory benches

Compares 2-

Premium Seismograph Teaching Model Science Classroom Six-lens optics set of threeManually operated seismograph model that traces shock waves onto a pulled paper strip, visualizing the relationship between local motion and seismic recording for geology lessons.

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Premium Seismograph Teaching Model Science Classroom Six-lens optics set of three

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