Nathan's Possibly Interesting web site
A portfolio type for featuring items in your portfolio.
A full-fledged slide rule 5 cm in diameter
Mesdag’s Panorama
Three centuries of innovation
A photo-essay for ham radio geeks
Two Coggeshall variants compared
An unusual slide rule from an unusual source
A computer for every child, 1909 style
One step before the slide rule
One curiously shaped calculator!
Where computing meets Pseudoscience
