natural sine tables

Natural Sine Tables - An extract from the Natural Sine tables is given below: Find from the tables the value of (i) sin 56 o (ii) sin 56 o 24 ' (iii) sin 56 o 28 ' . (i) sin 56 o Find 56 o on 'Natural Sines' h..

A special type of sine bar is sine centre which is used for conical objects having male and female parts.it cannot measure the angle more than 45 degree. Sine table is used to measure angles of large workpieces. As the angle has increased, h..

The tangent and cotangent came via a different route from the chord approach of the sine. These developed together and were not at first associated with angles. They became important for calculating heights from the length of the shadow that the object cast. The length of shadows wa..

Natural Cosine Tables - A part of the natural cosine tables is given below: Find from the tables the value of (i) cos 37 o (ii) cos 37 o 42 ' (iii) cos 37 o 45 ' (i) cos 37 o Find 37 o on the 'Natural Cosines' table in 'A' group...

A part of the natural cosine tables is given below: Find from the tables the value of (i) cos 37 o (ii) cos 37 o 42 ' (iii) cos 37 o 45 ' (i) cos 37 o Find 37 o on the 'Natural Cosines' table in 'A' group. As there are no minutes, the value is read ..

Hydrogen combines with non-metals like carbon, silicon, etc. to from covalent compound like halogens. Examples: CH 4 and CCl 4 . Remember : In 1766, Henry Cavendish, an English chemist, discovered hydrogen, by treating iron with dilute sulphuric acid. He also proved that when hydrogen is bur..

Introduction - The t-ratios of acute angles are given in tables of natural sines, natural cosines and natural tangents. In this chapter, we will discuss (i) how to read trigonometric tables, (ii) how to find the angle when the value of a t..

Raw Natural Rubber Vulcanized Natural Rubber Soft and sticky Comparatively hard and non-sticky Low tensile strength and not very strong High tensile strength and very strong Low elasticity High elasticity Can be used over a narrow range of temperat..

Discovery of Radioactivity and Nature of Radiations - In 1896, the phenomenon of radioactivity was accidentally discovered by French scientist Henri Becquerel. He was performing experiments with uranium compounds. He accidentally placed a crystal of potassium uranyl sulphate over photogra..

Introduction - The t-ratios of acute angles are given in tables of natural sines, natural cosines and natural tangents. In this chapter, we will discuss (i) how to read trigonometric tables, (ii) how to find the angle when the value of a t..