Economical Dynamo Subcategory_Electromagnetism and nucleus out of the

and nucleus out of the cell body for hands-on organelle identification in cell biology teaching

this battery box adds insulated terminals and prevents short-circuits from rolling cells touching exposed lab metalwork

Range 10Hz to 300Hz/sec

Current balance with a B

this empty 4mm-terminal holder accepts user-supplied parts where pre-wired modules don't cover the experiment

Economical Dynamo Subcategory_Electromagnetism and nucleus out of theHand operated dynamo built around a 6V motor on a base, generating enough output when cranked to light a connected bulb during electromagnetic induction and energy conversion demonstrations.