Origin of the Earth

With effective scale lengths of nearly 9″, Rotary scales offer greater accuracy than linear scales. All balances are graduated in gram/Newton. Dial: 3″ diameter metal suspension ring at top and hook at bottom.

For students to determine volume easily. A set of four specimens machined to have equal volume. Each piece is 12 mm × 12 mm × 50 mm (L x W x H). Set includes Aluminum, Copper, Brass and Steel.