In essence is very easy to understand, you can eg. multiplicate adding to logarrithm numbers, as said too rulers with logarrithm scale serve to multiplicate two numbers, same as two rulers with a normal cm scale can serve to add two numbers, putting the zero of one on eg. 4,5 cm of the other ruler and youll see that under the 3 cm of the first ruler, appears 7,5 cm. so you have calculed 4,5 + 3=7,5. The slide rulers work the same way, only that they use different logarithmm scales, whith which you can multiplicate, calculate angles, square roots and other, depending on the used scale. Thr magic of logarrithms-
In essence is very easy to understand, you can eg. multiplicate adding to logarrithm numbers, as said too rulers with logarrithm scale serve to multiplicate two numbers, same as two rulers with a normal cm scale can serve to add two numbers, putting the zero of one on eg. 4,5 cm of the other ruler and youll see that under the 3 cm of the first ruler, appears 7,5 cm. so you have calculed 4,5 + 3=7,5. The slide rulers work the same way, only that they use different logarithmm scales, whith which you can multiplicate, calculate angles, square roots and other, depending on the used scale. Thr magic of logarrithms-