Nathan's Possibly Interesting web site
A portfolio type for featuring items in your portfolio.
Nuclear blast slide rules from the cold war era
A rare action comic for the ultimate geek
A politically conscious slide rule from China
The Hoffman Airplane Calculator
The R. H. Smith helical slide rule
How to teach what makes things tick
Keeping farm animals healthy through a nutritious diet!
An elegant device of mysterious origins
A mechanical nomogram for weight calculations
Accurate to five decimal places!
