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Slide Rule Manufacturers (Word Search)
Find some of the popular slide rule manufacturers in this word search puzzle. There are twenty manufactures in this puzzle, see if you can find them all. (Opens in a new window and requires the Adobe Flash Player.)

History of the Slide Rule (Crossword)
See how good you are in identifying some of the famous people who were responsible for the invention and development of the slide rule. There are fourteen people included in this puzzle. (Opens in a new window and requires the Adobe Flash Player.)

The Mad Slide Ruler Logo (Jigsaw 35 Pieces) - What does it look like?
Play an online jigsaw puzzle and put the Mad Slide Ruler Logo back together! (Opens in a new window and requires the Adobe Flash Player.)

The Faber-Castell Logo (Jigsaw 35 Pieces) - What does it look like?
Play an online jigsaw puzzle and put the Faber-Castell Logo back together! (Opens in a new window and requires the Adobe Flash Player.)

The Apollo Launch (Jigsaw 56 Pieces) - What does it look like?
A nice photograph of the Apollo launch. (Opens in a new window and requires the Adobe Flash Player.)

A Slide Rule Collection (Jigsaw 120 Pieces) - What does it look like?
A bit of a challenge with a collection from the Oughtred Society pages. (Opens in a new window and requires the Adobe Flash Player.)

The Post Logo (Jigsaw 120 Pieces) - What does it look like?
You'll love this one - the Post logo in red and white. (Opens in a new window and requires the Adobe Flash Player.)