How Do I Use a Slide Rule Citizen Watch?

Answer The Citizen Watch Company, founded in 1918, is the world's biggest watchmaker and is renown for its technologically advanced watches. Slide rule Citizen watches' dial-bezel features the slide rule ... Read More »

Top Q&A For: How Do I Use a Slide Rule Citizen Watch

How to Use a Slide Rule Watch?

Slide rule watches feature a series of movable numbered dials that let you perform mathematical calculations, such as multiplication, division, and money conversion. Although numbers on the watch m... Read More »

How to Use a Slide Rule?

Suppose you want to compute 8+15 but you forgot how to add. Would it help if you had two yardsticks? Then you could just line them up so that they are offset by 8 inches. If the 0 lines up with the... Read More »

Who developed the slide rule?

William Oughtred invented the slide ruler in 1622. Born in 1574, Oughtred was an Anglian minister educated at Eton School and King's College in England, from which he received a Master of Arts degr... Read More »

How to Operate the Slide Rule?

Some may feel that in an era of portable computers and graphing calculators that the slide rule is little more than an anachronism. While it is a little dated, it is important to remember that the ... Read More »