Slide rules are a neat piece of math and history ... I have several of these. If you do want to buy a rule, there are a few things to look for. First, make sure it has the cursor and that it ...

Before there were apps for tablets and smartphones, before mathematics education software was easily installed on personal computers, before electronic calculators entered professional practice and ...

You have to really like slide rules to build your own, including the necessary artwork. Apparently [Dylan Thinnes] is a big fan, based on this project he began working on a few months back.