Travelling Microscope (Vernier type) for Physics Lab with wooden box planetary ball mill for laboratory When the two sheets are

When the two sheets are at 90 degrees to each other you can see through but when they are parallel that is at 0 degrees they become opaque

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the Hand Refractometer Erma Japan is renowned for its reliability and performance

Travelling Microscope (Vernier type) for Physics Lab with wooden box planetary ball mill for laboratory When the two sheets areTravelling Microscope (Vernier type) for Physics Lab with wooden box With horizontal and vertical scales. The bed is of cast iron and accurately machined. The horizontal carriage is machined and inters ground on the guide ways of the horizontal bed. The carriage is fitted with vertical brass pillar carrying a microscope tube on a ground fitted vertical carriage. The base is fitting with two leveling screws Horizontal scale is 20cms and vertical 15cms.