For the eyepiece the other rule holds; the object is represented by narrow pencils, and it is hence possible to subject the relatively great object, viz.

Body tubemicroscopefunction

The calculation is most convenient if the micrometer is left in the position of zero and the object is moved till one of its edges corresponds to the zero mark of the eyepiece scale.

As fractions of intervals can only be estimated in this method, a measurement with such an eyepiece scale can of course not be as exact as with a screw micrometer ocular.

You are welcome to come into the shop in princeton and buy paper gift cards, pint coolers, hot chocolate tins and marshies! We keeping making and stocking the shelves! If you ordered when the online store was open November 15th-18th, 2024. We’ll be shipping all of these the week of Decemebr 9th, 2024 **we know, it’s early…but thanksgiving is late and we only send hot chocolate tins, marshies and fun-paks 2 days a year! (next shipping time is JANUARY 2025)