The Lens Set is an excellent set of 6 unmounted glass lenses with round edges. Each set includes one each of double convex, plano-convex, concavoconvex, double concave, plano-concave, and convexo-concave lens.
These are 50mm diameter.
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
Learn all about Newton’s Laws and Energy conservation.
This illuminated orbiter is great for demonstrations in the astronomy classroom!
This science kit is an essential introduction to physics knowledge!
See the solar system in action!
View the glory of space with this hi-tech telescope set!