Adding those gives you 7.7743 which is the log of the result ... your desk could hold the equivalent of a 30 foot slide rule. However, there was another odd sort of slide rule that was the ...

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 ...

This merger added a range of PIC slide rules to their range. the plastic slide rules where introduced in the 1960s and in 1967 the company became British Thornton. The slide rule was the evelution ...