Burette, Acrylic, 50mL - Class B - 0.5mL Blue Graduations - With PTFE Key Stopcock Category_Science Gifts 25-inch Atwood machine with two

25-inch Atwood machine with two 2-inch blue-plastic pulleys on an aluminum rod

Pair of 12 by 3

Four-metal cylinder set at identical 1

Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric

Aluminum 40cm precision force table with tapped pulley positions and central ring assembly for resolving and composing force vectors under equilibrium conditions

Burette, Acrylic, 50mL - Class B - 0.5mL Blue Graduations - With PTFE Key Stopcock Category_Science Gifts 25-inch Atwood machine with twoShatter resistant acrylic burette with a PTFE key stopcock and Class B accuracy per DIN ISO 385, compatible with dilute acids, bases, and aqueous titrants.