Most precise, durable and accurate instrument, resolution to 30 seconds of arc with a large degree plate of diameter 200 mm. and longer verniers gives better accuracy and resolution. Fixed degree plate, telescope and prism/grating table rotate independently. Bigger and heavier model so as to provides more stability for delicate optical measurements. Mass 7 kg.
Category: Physics & Electronic Laboratory Apparatus
QUICK LOCK CLAMPS
150 mm. long plated screw to hold up to four pair of single groove casted light alloy aluminium washers, fastened with metal washer and nickel plated wing nut.
Light alloy, with single hole to take rods up to 13 mm. diameter.
GEOMETRICAL MODELS WOODEN SOLID
A set of 16 or 21 plane and solid geometric shapes. The plain shapes include triangle, rectangle, square, circle, semi circle, figure with five sides, six sides, eight sides, right angle. Solid figures include triangle, rectangle, cylinder, square, cone, square base pyramid, triangle base pyramid, pentagon, hexagon, octagon, sphere and ellipse. Supplied in a polished wooden box.
CUBE METAL SET
Set of six, comprising one each of Aluminium, Iron, Copper, Brass, Lead and Zinc.
Size, side 10, 20, 25 mm.