Description
Polished hardwood test tube rack with a traditional two-tier design
driving performance with motor-generator #2
and field magnet for direct observation as students trace how current produces rotation in a closed magnetic circuit
sized to read one step up from the 0-1A meter when student circuits draw past the lower meter's full-scale deflection
Opisometer Geology Polished hardwood test tube rackOpisometer with a knurled wheel on a threaded spindle, rolling along curved lines on maps, charts, and drawings to convert winding distance into straight line length for geography coursework.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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