Air
Air - Air is an inexhaustible natural resource, essential for the survival of all the living organisms on earth. Air is a mixture of different gases; nitrogen and oxygen are the major components. Air present in atmosphere consists of 78% nitrogen 21% oxygen a..
Air cushion
By separating the surfaces by an air cushion e.g., a hovercraft, can travel over rough land, swamp or sea. Here, as the moving object does not come in contact with the other solid surface, the frictional forces are reduced to a very great extent. Hovercraft Princip..
By separating the surfaces by an air cushion e.g., a hovercraft, can travel over rough land, swamp or sea. Here, as the moving object does not come in contact with the other solid surface, the frictional forces are reduced to a very great extent. Hovercraft Princip..By Separating the Surfaces by An Air Cushion
For example, a hovercraft can travel over rough land, swamp or sea. As the moving object does not come in contact with the other solid surface, the frictional forces are reduced. ..
For example, a hovercraft can travel over rough land, swamp or sea. As the moving object does not come in contact with the other solid surface, the frictional forces are reduced. ..Sound can travel through water and other liquids
We know that water transmits sound. This can be shown by clapping two pieces of stone or metal against each other under water, when the sound of the clapping can be heard above the water. In 1654, Otto Von Guericke found that fish were attracted by the sound of a ringing bell underwater and theref..
Sound Needs a Medium to Travel
The origin of sound is always some vibrating body. In some cases the vibrations of the source may be very small or very large that it may not be possible to detect them. This type of vibrations is produced by tuning fork, drum, bell, the string of a guitar etc. Human voice originates from the vibra..
Jason is a member of a flying club. With a tail wind, his plane travel..
Jason is a member of a flying club. With a tail wind, his plane traveled 2240 mi in 5h. With a head wind, it took 7h to make the return flight over the same route. Find the plane's air speed and the wind speed, assuming both were constant. => 364, 84 or 320, 59 or 404, 64 or 384..
Laplace's Correction to Newton's Formula
Assuming isothermal conditions to prevail when sound travels through air, Newton has applied Boyle's law to the changes in pressure and volum..
Soil
The word soil is derived from the Latin word solum meaning earthy material in which plants grow. The science which deals with the study of soil is called Soil Science, Pedology (pedos = earth) or edaphology (edaphos = soil). The process of formation of soil is called pedogenesis. A soil ..
Poet
Poet - Samuel Taylor Coleridge (1772 - 1834) was a poet and a philosopher. He was a good friend of William Wordsworth. They often spent time together and even published together 'The Lyrical Ballads' which contains the earlier version of the Ancient Mariner. He lived in England and travelled..
Poet - Samuel Taylor Coleridge (1772 - 1834) was a poet and a philosopher. He was a good friend of William Wordsworth. They often spent time together and even published together 'The Lyrical Ballads' which contains the earlier version of the Ancient Mariner. He lived in England and travelled..Introduction
Biogeography reveals that living organisms (plants and animals) are found practically everywhere on this earth. The living components interact among themselves as well as with their physical environment like soil, air and water. The branch of biology, which deals with the relati..
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