Science

Balance Diet and Nutrition

Balance diet refers to the intake of eatables which can provide all the essential food constituents necessary for growth and maintenance of the body. Indefinite amount in which they are required by the body. A balanced diet means eating the right amount of food from all food groups. Balance Diet A balanced diet is that tight which consists of the various institutions of food in accurate and appropriate quantity and quality according to the requirement of an individual in fact every individual does not require save the type of diet that it differs from individual to individual the sum of the following points of a balanced diet. 1. A balanced diet must contain all the essential constituent in an adequate …

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बल व घर्षण

यदि आप किसी वस्तु को खींचते या ज्यादा धकेलते हैं तो आप उस पर बल आरोपित करते हैं। यदि वह वस्तु दृढ़ता पूर्वक नहीं बंधी है तो वह गति करेगी। सभी बल वस्तु की गति में परिवर्तन करते हैं। परंतु किसी वस्तु को गति में रखने के लिए बल आवश्यक नहीं होता है।जब तीर को किसी धनुष से छोड़ा जाता है तो वह बिना अतिरिक्त बल लगे भी गतिमान रहता है। किसी गाड़ी अथवा वायुयान को नियत चाल से गतिमान रखने के लिए बल की आवश्यकता होती है। क्योंकि गतिमान भागों तथा वाहन के चारों ओर की वायु द्वारा आरोपित घर्षण उसे धीमा कर देता है। बल प्रत्येक कार्य को अभिकर्षण या आकर्षण अथवा दोनों के रूप में व्यक्त किया …

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We can see well underwater

Can we see well underwater? Yes or not let’s check. Tribals gipsies and aboriginals our vanishing lot. Modern society has marginalised them. They walk and talk differently, do not conform to our ways of life, occupy territory that we need by badly for our needs and development – the cards are all against them. Yet, they have some special talents and ways that we can take cues and learn to use to advantage, if only we treat them well and attempt to understand them. Life Underwater The Nari Kauravas are expert foresters and foragers the Bhils are experts in what we call a sustainable way of life; they make useful things from leaves, roots, suits, and box and materials from …

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Uses of Scientific Instruments

Here i am giving a list of 51 instrument and brief use of that instrument. Uses of Scientific Instruments is given below. Uses of Scientific Instruments Accumulator: Electrical energy is stored. Altimeter: Used in aircraft for measuring altitudes. Ammeter: Measure the electrical current in ampere Anemometer: Measuring the strength of winds. Audiometer: Measuring intensity of wind Barometer: Measuring atmospheric pressure Binocular: An optical instrument designed for magnified view of distant objects by both eyes. Cardiogram: For recording the heart’s movement Calorimeter: Measuring of quantities of heat Chronometer: A clock that keeps very accurate time as the one that is used to determine longitude at sea. Clinical thermometer: A thermometer for measuring the temperature of human body Calorimeter: An instrument for …

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Use of scientific instrument

विषाणु एवं जीवाणु

पृथ्वी पर असंख्य अति सूक्ष्म जीवित कण पाए जाते हैं। यह न्यूक्लिक अम्ल एवं प्रोटीन से बने होते हैं। इनमें निर्जीव एवं सजीवों के लक्षणों का सम्मिश्रण होता है, इन्हें विषाणु या वायरस कहते हैं। जीवाणु एक एककोशिकीय जीव है। इसका आकार कुछ मिलिमीटर तक ही होता है। विषाणु विषाणु सजीव एवं निर्जीव जगत के बीच संयोजक कड़ी माने जाते हैं। इनके कारण जंतु एवं पौधे में संक्रामक रोग उत्पन्न होते हैं। यह इतने सूक्ष्म होते हैं कि केवल इलेक्ट्रॉन सूक्ष्म दर्शी द्वारा ही देखे जा सकते हैं। इनका अध्ययन विषाणु विज्ञान (virology) के अंतर्गत किया जाता है। यह कोशिका के बाहर निर्जीव पदार्थ की तरह होते हैं और जीवन संबंधी कोई लक्षण प्रदर्शित नहीं करते किंतु जीवित कोशिका के …

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A Study on Genetics

Genetics can be stated as the exploration of the working and major cause of variation and heredity. The groundwork on which here it stands is known as inheritance. it is defined as the procedure by which characteristics are handed down from one generation to the other. In this post, A Study on Genetics, we will see the structure and function of DNA and the story and theory of evolution. Genetics Species share many tricks in common from generation to generation. This is due to their inheritance of genes from their ancestors. Genetics is the study of genes and genetic variation in living organism. Gregor Johann Mendel is the father of genetics. Mendel’s Law’s of inheritance Law of dominance Law of …

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Genetics

The Living World

Biology is the science of life forms and living processes. The living world comprises an amazing diversity of living organisms. In the following post “The living world”, we will get a basic description, characteristics of life, some of its important traits, and the basic principles of biology. Life Life is a characteristic distinguishing all physical entities having biological processes, those who do not have biological process and attributes. This is because such functions either have ceased in these entities or because they lack such functions and are classified as inanimate. Biological science is concerned with the study of life. Live exists almost everywhere on the planet earth with a wide range of variety of diverse life forms. life can be …

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The Living World

Top 21 biologists and their contribution

In last article, I already discussed the nature and scope of biology. Here is a list of top 21 biologists with their famous contribution to the field. Top 21 biologists Hippocrates– The father of western medicine Aristotle– Classified organisms into a “ladder of life” Galen– first to introduce medicinal experimentation Anton van Leeuwenhock– the father of microbiology Robert Hooke– Coined the term cell Joseph Priestley– discovered oxygen, invented soda water by dissolving heavy gas in water, he was also the first to observe photosynthethis. Edward Jenner- Created the first effective vaccine for smallpox, also coined term vaccination and known as the father of immunology. Robert brown- discovered the cell nucleus Louis Pasteur– Created the process of pasteurization for treating milk …

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Biologist