Description

Snell's law

a thick 16

Wall-mounted Mason's hygrometer with two identical dual-scale thermometers — one dry and one kept wet via a water reservoir — calculating relative humidity from their paired reading difference

Designed to generate and detect ultrasonic waves above the audible range

cerebellum

Karst, Caves and Water Action Landform Model, 2-Part Type_Geographical Snell's lawTwo part karst landform model with a removable surface that exposes caves, stalagmites, stalactites, and an underground lake, mapping 32 keyed features across the subsurface.

Exchange/Return Notes

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Karst, Caves and Water Action Landform Model, 2-Part Type_Geographical Snell's law

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