Two Necks Multiple Adapter, 19/26 Socket and 34/35 Cone, Borosilicate Glass Mechanics_Force & Motion running without batteries or external

running without batteries or external power

Low-voltage DC motor with a current-limiting series resistor on a demonstration base with 4mm plug connections

the wider square-face proportions handling broader incident beams in dispersion and refraction demonstrations

and color-mixing activities

Solderless breadboard ships with 150 pre-cut jumper wires in assorted lengths for rapid prototyping of electronic circuits in physics and engineering classes

Two Necks Multiple Adapter, 19/26 Socket and 34/35 Cone, Borosilicate Glass Mechanics_Force & Motion running without batteries or externalTwo neck multiple adapter in borosilicate glass features 19 26 socket and 34 35 cone for multi component chemistry apparatus connections.