Description
both striking the ground together
Used to trace the invisible shape of magnetic fields
a battery-free source of partial vacuum for bell-jar demonstrations without external power
5-inch wood-framed demonstration manometer with a borosilicate 3
6 inches for clean pinhole-imaging and diffraction studies
Hand Pump for Physics Demonstrations Subcategory_Wash Bottles both striking the ground togetherHand operated pressure pump supplying positive pressure for gas law, pressure vessel, and pneumatic demonstrations, a battery free source for physics classes exploring pressure behavior.
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