16Nov 2018 by admin

Free Essay on Wonders of Science for Kids

Agriculture
Free Essay on Wonders of Science for Kids – This is the age of science. Science has changed the entire world. It is not the same in which our ancestors lived. If they were to return now to the earth, they would not recognise it.Science has made our life more comfortable, beautiful and trouble-free. The blessings of science are too many to count. Science has conquered time and distance.Very fast means of communication and transport have made the world smaller. Telephone, radio, television, aeroplane etc. are some of these. Image Source: burkesspecialkids.com ADVERTISEMENTS: Electricity is another wonderful gift of science. Its uses are unlimited. It lights our houses, shops and streets. It runs our factories and trains. It runs our coolers and air-conditioners’ in summer and keeps us warm in…
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15Nov 2018 by admin

Essay on the gravitational force of Earth

Sciences
Essay on the gravitational force of Earth. The gravitational force at the surface of the planet is the force that binds all bodies to earth. This force is one of the four forces recognized by physicists, and this kind of force, known as ‘gravity’, attracts every celestial object to earth. Though it is the most important of the forces essential for our lives, it is the least comprehended of them all.Throughout ages scientists have tried to solve the mystery of gravity. One of the first discoveries concerning gravity was made by Aristotle who concluded from his experiments that the downward movement of any body is that has weight had a proportional relationship between its quickness in motion and its size. This theory was accepted for centuries, but after a series…
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12Nov 2018 by admin

Short essay for kids on The Solar System

Sciences
Short essay for kids on The Solar System. The Solar System consists of nine planets, of which the Earth is one, and the star in the centre is called the Sun. This Solar System is tucked away in a corner of the Milky Way, at a distance of about 30,000 light years from the centre of this galaxy. This system contains nine planets—Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.A planet means a ‘wanderer’. Unlike stars, which have a fixed position, the planets shift their positions and are never stationary. The first five planets are named after Roman gods. The inner planets (Mercury, Venus, Earth and Mars) are highly dense and rocky. They resemble the Earth and are aptly called ‘terrestrial planets’.The Solar System is very big and…
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03Nov 2018 by admin

An idiomatic essay on “A little knowledge is a dangerous thing”

Sciences
This is a beautiful essay on an old phrase “A Little knowledge is a dangerous thing”. In this era of expert knowledge, a little knowledge of the world stands nowhere. One has to keep oneself updated in order to be somewhere in this world. Be it any stream of knowledge, any part of wisdom, in depth knowledge of it is necessary in order to be able to formulate an opinion or develop a line of thought. Whether it is art, science, literature, politics, technology, communication, astronomy, computers, economics, administration, law etc or whether it is simply about life in general, one has to have great, deep and wide knowledge about it in order to be able to speak about it— for, or against. This is necessary, needed and demanded especially…
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24Oct 2018 by admin

Why some Species are more Vulnerable to Extinction?

Biology
Some species are more prone to extinction than others. Simberloff (1986) and Caughley (1994) have reviewed this matter and drawn some conclusions. Processes that, make populations rare in the first place [the ‘ultimate causes of extinction’ (Simberloff, 1986) and ‘the declining population paradigm’ (Caughley, 1994)] should be distinguished from those that may finally cause extinction, once populations are small (Simberloff’s ‘proximate causes’, and Caughley’s ‘small population paradigm’).Small populations still die out, even when protected, because of proximate causes. These causes include demographic and environmental stochasticity, genetic deterioration, and so­cial dysfunction (Lawton, 1994). It is the ultimate causes of extinction that make species rare in the first place.Historically, formerly widespread and abundant species have become rare and vulnerable to the proximate causes of extinction because of hunting, habitat destruction and pollution.…
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22Oct 2018 by admin

12 Important Characteristics of Behavioural Approach to the Study of Politics

Sciences
The Important Characteristics of Behavioural Approach to the Study of Politics are listed below: 1. Study of Human Political Behaviour: Instead of political institutions, Behavioural Approach stands for the study of human behaviour in politics. It places emphasis upon the study of both individual as well as group behaviour in politics. 2. Empirical Methods: ADVERTISEMENTS: Behavioural approach advocates the use of empirical methods of study involving data collection through field methods, and analysis of data using statistical and mathematical measurement techniques. It advocates a study of facts of political life. 3. Interdisciplinary Focus: It advocates the study of politics with the help of knowledge drawn from other social sciences, particularly sociology, psychology and anthropology. It even accepts the need to use concepts drawn from natural sciences. Image Source: lawrence.edu 4.…
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22Oct 2018 by admin

13 Limitations of Behaviouralism Approach to Study of Politics

Sciences
The Limitations of Behaviouralism Approach to the Study of Politics are given below: 1. Behavioural approach is not a very set and definite approach: It represents several different views with a common cause or with a similar focus. Big differences and divisions among the behaviouralists have made the behavioural approach highly complex and confusing. 2. Difficulties in the study of human behaviour: ADVERTISEMENTS: Human behaviour as the object of study is always bound to be problematic and even fruitless. 3. All aspects of human behaviour do not admit empirical methods: All aspects of human behaviour cannot be observed and stated in empirical generalisations. Image Source: uchicagomed.files.wordpress.com 4. Politics can lose its autonomous status: Behavioural Approach can make Politics dependent upon other social sciences, particularly Psychology, Sociology and Anthropology. 5. Study…
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22Oct 2018 by admin

4 Important Methods Used for Detecting Mutations

Sciences
A variety of methods are available for detecting mutations, both in plants and animals.Some of most important methods are described below. 1. CLB method for detecting mutations: This method perfected by Muller has been used to detect mutations in X chromosomes of Drosophila. Even though it is primarily meant to detect radiation induced mutations, it can be used in the detection of spontaneous mutations as well. ADVERTISEMENTS: Three characters on the X chromosome are chosen to study the mutation. These are – C = Cross over suppressor. This represents a long inversion in the X chromosome, suppressing the cross over in the inverted portion.Cross over may still occur, but cross over gametes rarely survive due to deficiencies and duplications. L = Lethal gene. This is a recessive character. Hence homozygous…
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19Oct 2018 by admin

8 Important Features of an “Ideal State” (According to Aristotle)

Agriculture
Aristotle widely regarded as a realist, outlined his ideal state in book II, III, VIII of his “Politics”. A comparison between idealism of Plato and Aristotle is best illustrated by Sabine, “What Aristotle calls the ideal state is always Plato’s second best”.While Plato hails his ideal state to be good for all times to come, Aristotle accepts limitations of his ideal state. Moreover, Aristotle like his master prefers monarchy. But, he insists on the primacy of law not a philosopher king. Image Source: ichef.bbci.co.uk Features of the Ideal State: ADVERTISEMENTS: Following features can be outlined about Aristotle’s ideal state.1. There is supremacy of law in his ideal state. He favours impersonal rule of law which represents the wisdom of community since the ages.2. It is an ethical institution to develop…
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18Oct 2018 by admin

Short Essay on Microbial Genetics

Biology
Genetics is a relatively new field of biology and most associate this science with Johann Gregor Mendel (1822-84), who was the first person to formulate any laws about how characteristics are passed from one generation to the next. This kind of study is often called Mendelian genetics.His work was not generally accepted until 1900, when three men working independently rediscovered some of the ideas that Mendel had formulated thirty years earlier.However, genetics was revolutionized in 1953 when, James Watson and Francis Crick proposed a chemical structure for DNA. Image Source: williambrownscienceoflife.com ADVERTISEMENTS: Their discovery made it possible to understand more clearly the chemical basis of heredity in both eukaryotic and prokaryotic organisms. Since then the proposed double helix structure for DNA has become the cornerstone for explaining gene function, gene…
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