Description

Plus-or-minus 2

suspending thermometers above hot plates or fixing specimens in orientation

and specific-heat comparisons

Grips burettes

Snell's law

Rectangular Refraction Glass Block, 75 x 50 x 18mm Lab Supplies_Classroom Plus-or-minus 2Pairs a 75 by 50mm face with a thicker 18mm body on a rectangular glass refraction block, the optically worked beveled edges widening the visible lateral shift in refraction angle demos.

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Rectangular Refraction Glass Block, 75 x 50 x 18mm Lab Supplies_Classroom Plus-or-minus 2

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