The pendulum is provided with two removable knife edges passing through any one of the holes ...
The Popular Science Apparatus Workshops [Measurement & Analysis Instruments] [Weighing Scales]
It consists of a stainless steel rod of 1 meter long and 1.0 cm diameter ...
The Popular Science Apparatus Workshops [Measurement & Analysis Instruments] [Weighing Scales]
A chrome plated brass bar of dimension 100x25xO.5 cm bored at equal intervals of 5cm and provided with two removable knife edge ...
The Popular Science Apparatus Workshops [Measurement & Analysis Instruments] [Weighing Scales]