The World of science and Technology?

A tree       D on't Judge Life by one season      T here was a man who had four  sons. He wanted his sons to learn to not judge thing too quickly.      So, he sent them on a guest, in turn, to go and look at s pear tree that was a great distance away.    The first son went in the winter, the second in the spring, the third in the summer and then youngest    son int he fall.    When they had all gone and come back, he called them together to describe what they had seen.   The first son said that the tree was ugly, bent and twisted.   The second son said no---it was covered with a green buds and full of promise.   The third son disagreed, he said it was laden with blossoms that smelled  so sweet and looked so        beautiful, it was the most graceful thing had ever seen.   The last son disagreed with all of them-- he said it w...

Q. On what principle does a refrigerator work? Ironically, refrigerators keep things cold because of the nature of heat.  The Second Law of Thermodynamics essentially states that if a cold object is placed next to a hot object, the cold object will become warmer and the hot object will become cooler.  A refrigerator does not cool items by lowering their original temperatures; instead, an evaporating gas called a refrigerant draws heat away, leaving the surrounding area much colder. Refrigerators and air conditioners both work on the principle of cooling through evaporation. A refrigerator consists of two storage compartments - one for frozen items and the other for items requiring refrigeration but not freezing. These compartments are surrounded by a series of heat-exchanging pipes. Near the bottom of the refrigerator unit is a heavy metal device called a compressor. The compressor is powered by an electric motor. More heat-exchanging pipes are coiled...

Earth and Space Figure: Earth Earth is an only living planet known up this time. It lies in solar system as inner planets. with it Mercury, Venus and Mars are also included. Jupiter, Saturn, Uranus  and Neptune are outer planets. Sun lies in the center of solar system and all other planets revolve around the sun in elliptical orbit. Solar system was formed billion years ago.  It has been always curiosity for man to know about the origin of the earth and entire solar system. On the other hand, our universe is very vast. All the matter, energy and space together make our universe. It consists of galaxies, stars, planets, comets, meteors, asteroids, and so on. It is curious to know that the formation of universe and our solar system. Numerous questions about the formation of Himalayas, Mountains, rivers, vegetation, oceans, etc. on earth is another curiosity. |Many scientists have tried to to explain about the origin of the Universe and solar...

About Design and Research A Research design is the set of methods and procedure used in collecting and analyzing measures of the variables specified in the research problem. The design of study defines the study type (descriptive,correlation,semi-experiment,review,meta-analytic) and sub-type(descriptive-longitudinal case study,research problem,Hypothesis|hypothesis independent and dependent variables, Design of experiment|experimental design, and if application, data collection methods and a statistical analysis plan. Research design is the framework that has been created to find the answer to research questions. Design types and Sub-types There are many ways to classify research designs but sometimes the distinction is artificial and other times different design are combined. Nonetheless,the list below offers a number o useful distinctions between possible research designs. A research design is an arrangement of conditions of collections. Descriptive cor-relational Semi-ex...

Q. The sun seems to be red during sunsets and sunrise,Why? Ans:- Sun rays travel greater distance trough atmosphere during the sunset and sunrise. The blue color, due ti its high scattering capacity almost get scattered away and can not reach to our eyes. However, the red color which get scattered the least reaches our eyes therefore, the sky appears red during the sunset and sunrise.