US$ 20.00
Vinyl-coated three-finger jaws hold apparatus up to 3
two collision carts
Hand-cranked 4-stroke gasoline engine model at 13
a battery-free source of partial vacuum for bell-jar demonstrations without external power
and 500mm focal lengths for comparative refraction experiments
Moment of Inertia Disc on Magnetic Base Handle Type_Wood Vinyl-coated three-finger jaws hold apparatus6. 5 inch plastic moment of inertia disc on a magnetic base ball bearing, perforated at 1cm intervals along 12 axes with six moveable pins for torque and rotational energy investigations.
US$ 20.00
US$ 20.00
US$ 75.00
US$ 27.95
US$ 25.00
US$ 20.00
US$ 19.99