Top view of the slide rule

Keuffel & Esser Co. Slide Rule

physical object

Identifier
2018.12.13
Description
This is a slide rule manufactured in Keuffel & Esser Co. It can be used to perform multiplication, division, square and cube root. Also, sine, cosine and tangent can be done with the slide rule. It has accuracy of two decimal places. Yet, for the third decimal place, it can be found through mental calculation. For accuracy beyond 3 decimal place, you need to perform physical calculation on a paper.
Related Term
slide rules (is described by)

Related people
Jack LeSage (donor)
Kina Kim (documented)