Laplace Rail for Magnetic Field Demonstration, 11.75 x 3" Plastic Labware_Plastic Burettes this wooden simple-machine model lets

this wooden simple-machine model lets students measure input effort against output splitting force at different wedge angles

Transparent-cased 2V 20Ah lead-acid accumulator with removable handle and printed terminal markings

Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed

suitable for securing tubes and flask necks in general laboratory assemblies

Laplace Rail for Magnetic Field Demonstration, 11.75 x 3" Plastic Labware_Plastic Burettes this wooden simple-machine model letsOpen Laplace rail with a free moving conductor and 4mm sockets, letting students watch the wire travel along the rail as roughly 3A of current crosses the magnetic field.