Description

Locking control at any extension on this two-meter retractable tape measure

Red LED on a demonstration base with 4mm plug connections

the wider bore accepting full-size bar magnets while AC current drives the alternating field that rotates domains for demagnetization

and steel cubes machined to the same 1

6 armatures

Demonstration Spherometer Subcategory_Weights and Masses Locking control at any extensionDemonstration spherometer with an oversized 133 mm dial head and baked enamel finish, letting an entire classroom read spherometer values before students work with benchtop units.

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Demonstration Spherometer Subcategory_Weights and Masses Locking control at any extension

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