world of work

Inside the caravan, I stood on a chair and lit the oil lamp in the ceiling. I had some weekend homework to do and this was as good a time as any to do it. I laid my books on the table and sat down. But I found it impossible to keep my mind on my work. The clock showed half past seven. Th..

In 1960, the Eleventh General Conference of Weights and Measures recommended an International System of Units (abbreviated as SI) based on the metric system of measurement. When the recommendation was accepted in 1968, it marked the first time in world history that a single system o..

The graphical method of solving an LPP is possible only if there are two decision variables (say x and y). This method is not suitable if there are three or more decision variables. In this case, there is a powerful method called 'simplex method'. The wide usage of liner programming helps in ..

Newton's laws of motion help us to analyse many kinds of motion. But the analysis is complicated, requiring details about the motion that we simply do not know. Long ago, people used to trade by only exchanging products when the concept of 'money' was yet to be introduced. Now we do know the concep..

Windmill - A device in which wind is used to rotate the blades of a fan like structure is called a windmill. The windmill works on a very simple principle. When the blowing wind strikes across the blades of a windmill it exerts a force which rotates its blades. The rotational effect is du..

Living and Working Together in Families and Communities, Now and Long Ago The History of Students' Own State or Region The History of the United States: Democratic Principles and Values and the People from Many Cultures who Contributed to its Cultural, Economic, and Political Heritage..

Most experiments in physics require the observations made to be quantitative rather than qualitative. If observations are only descriptive or qualitative, they are likely to be imprecise and could cause disagreements between experimenters. For example, scientists cannot merely say that an object i..

All living organisms need food for growth, work, repair and maintaining life processes. Food is made up of several components such as proteins, carbohydrates, fats, minerals and vitamins. Each of these components is required in a specific amount because each of them has a definite role to..

Rabindranath Tagore (1861 - 1941), Nobel Literature for literature (1913), was one of modern India's greatest poets and the composer of independent India's National Anthem. Tagore wrote primarily in Bengali, but translated many of his works into English himself. Tagore's writing is hi..

Judicious use of Energy - In order to live and enable ourselves to do everyday work we need energy. The prosperity of a country depends upon the availability of energy. Huge amount of electrical energy is used to run the air conditioners, cold storage and other domestic appliances. A larg..