Maxwells Vibration Needle

Comprises a lightweight aluminum track with leveling screws and cushioned stops at either end, pulley fixed towards one end, clamp for vibrator and automatic pen release.
A metal trolley with ball bearing mounted wheels to minimize friction, has five holes for accommodating cylindrical masses, including is a vibrator and pen holder with one each wooden blocks, to demonstrate the experiments on acceleration.

Dip Needle for Physics Lab with Cobalt steel needle, 10 cm long, graduated quadrant fully rotatable on metal base, divided at 45° Degree