Nathan's Possibly Interesting web site
A portfolio type for featuring items in your portfolio.
Nostalgia from a wonderful hobby
An Everard style 18th century slide rule
Little known, but well worth knowing
A truly intriguing device!
A mind-blowing mechanism for exposure calculation
A wonderful hobby, on a shoestring
Two pinwheel calculators compared
Made by one smart water engineer!
Tavernier-Gravet’s evolving slide rule technology
IBM pluggable units
