US$ 315.50
this demonstrator surrounds a central magnet with 46 small compasses that align in a flowing dipole pattern
Carp fish model with removable air bladder
demonstrating magnet action
and 4mm wire terminals
Pascal's Hydraulic Demonstrator with 50mL and 10mL Pistons Category_Plasticware this demonstrator surrounds a centralHydraulic press Pascal's demonstrator on a 7. 5 inch wooden frame pairing a 10mL small syringe piston with a 50mL large piston, showing mechanical advantage through fluid pressure transmission.