Previosly in measuring scale inches are divided in 10 parts but now it is divided in 18 parts why it is so.?

Question

When inches are divide in 10 parts we can measure 1.1, 1.2 inches so on . Now how can I measure above .

Answer 1

I think you are referring to the usual English convention of measuring using fractions of an inch, such as 1/2, 1/4, 3/16, 5/8, etc. The number in your question should be 16, not 18. As a former carpenter, the fractional method is better than the decimal method, in my opinion, although my carpenter's square had degradations in both fractional inches and decimal inches, but I almost never used the decimal side of my ruler. If you want to work in decimals, use the metric system. It is more commonly used world-wide anyway.

Answer 2

I don't know if the matter stated by you is followed all over the world!

What you have stated is correct! (10 divisions of an inch can realise 'easy to grasp decimal-split' and 18 divisions will not do it!

However 18 can be divided by maximum whole numbers like 2,3, 6,9 etc, which is also a reason for dividing 'angle around a centre point of circle' as 360 degrees!

Answer 3

Virtually all measuring units have some historical basis which is not needed now. For example, nobody uses cubit. A yard is the distance from the King's nose to the tip of his finger. Care to guess where the 'foot' comes from?

Anyways, 18 parts in one inch was convenient for whoever started it. Typeface (or fonts) have such units. What is the context of your question

Answer 4

Virtually all measuring units have some historical basis which is not needed now. For example, nobody uses cubit. A yard is the distance from the King's nose to the tip of his finger. Care to guess where the 'foot' comes from?

Anyways, 18 parts in one inch was convenient for whoever started it. Typeface (or fonts) have such units. What is the context of your question?

Answer 5

Generaly, more parts give better precission. Add reason for it is that inch in comparison with milimeter is much "rude" unity (1 inch= 25,4 mm). Therefore somebody is make conclusion that will be better for measurment if scale in inches divide on more parts. You've right, now is much difficulty to estimate right value of measuring but try with divide of 18 (9, 4.1/2, 2.1/4, 1.!/8 e.t.c.) Best Regards and veradisca! Neven.

Answer 6

Divide the length by 16 so 10/16 or 5/8 inches long.

Answer 7

10 inches may not be accurately equal to a simple whole number centimeter if it is 18 inches it equals centimetres accurately