How Do You Use A Pulsar Watch Slide Rule?
Slide rule watches are basic forms of radial slide rules, also known as circular slide rules, which allow the wearer to perform simple mathematical equations quickly. Pulsar watches feature a pair of radial dials which are numbered and can then be manipulated by turning the outer ring, which is movable. By aligning numbers on the outer and inner dial, a second number can be found and used to provide the result of a multiplication or division problem. Convert the numbers in the equation into numbers that fit on the scale of the watch. The maximum calculable number on the watch varies between Pulsar watches. The easiest way to convert a number is to multiply or divide by a multiple of 10, meaning you simply have to move the decimal left or right. For example, a number of 60 could be calculated on a watch face that only goes to 10 by first dividing 60 by 10, to make it 6. Align the outer movable dial of the watch. For a multiplication, one of the numbers must by aligned over the line mark
