Recommended Pages at gwydir.demon.co.uk
Napier's bones
gwydir.demon.co.uk — “Calculating machines - Napier's bones” View full resource at gwydir.demon.co.uk
Most Recently Shared on October 10, 2010 at 3:20 pm By:
Don Carli - dcarli Green Advocate
Interactive Napier's bones http://bit.ly/a1z9U3
Slide rule
gwydir.demon.co.uk — “Slide rule” View full resource at gwydir.demon.co.uk
Most Recently Shared on October 10, 2010 at 3:18 pm By:
Don Carli - dcarli Green Advocate
Happy Binary Day: Try this digital slide rule http://bit.ly/9I52Gt NB@bruces
