Vernier Travelling Microscope, 10X with Wooden Case Subcategory_Electromagnetism 5V DC fan motor with

5V DC fan motor with a blue plastic blade on a 3

Used to introduce photoconductivity and light-controlled circuits

and a 3mm thickness

the moderate curvature spreading light gently for divergence and virtual-image-formation work in refraction demos

this 75 x 10mm Alnico cylinder pair ships with a spacer and keepers in a cardboard storage box

Vernier Travelling Microscope, 10X with Wooden Case Subcategory_Electromagnetism 5V DC fan motor withCast iron travelling microscope with three leveling screws, horizontal and vertical vernier scales, and a 10x eyepiece for fine resolution measurement in classroom and research laboratories.