Blue Epoxy Wire Test Tube Rack, 80-Hole (8 x 10), for 22-25mm Tubes Lab Supplies_Sieves drawing both DC and AC

drawing both DC and AC simultaneously with short-circuit protection via a 0

Stand-mounted lift pump illustrating how atmospheric pressure lifts water through a valve-and-piston mechanism

this metal wave helix demonstrates pulse propagation

Open-mount electromagnet bell on an 8x4-inch wooden base with a push button and 4mm banana sockets

Used to demonstrate photovoltaic energy conversion

Blue Epoxy Wire Test Tube Rack, 80-Hole (8 x 10), for 22-25mm Tubes Lab Supplies_Sieves drawing both DC and ACEpoxy coated steel wire test tube rack with 80 holes in an 8 by 10 layout, sized for 22 to 25 mm tubes in high throughput biology and chemistry classrooms.