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'Escape velocity’is a direct application of Newton’s third law as the force exerted by the body escaping from the earth generates a reaction. This force or velocity generated must be greater than the attracting force for an object to break free and enter space. It has now been calculated that a velocity of 7 miles per second is the minimum speed required to break free from the confines of the earth’s gravity; this is popularly referred to as ' Escape velocity' and works out...
Published by Madan G Singh 63 months ago in Physics | +1 votes | 0 comments
The Atomic bomb was first used on Japan and resulted in unconditional surrender. The A-Bomb is based on Einstein’s energy mass equation. It involves bombarding the heavy nuclei of an element like Uranium or Plutonium with neutrons. This sets off a chain reaction called fission resulting in a massive release of energy. It also releases gamma rays and neutron radiation called fallout.
Published by Madan G Singh 66 months ago in Physics | +8 votes | 0 comments
The analysis of current distribution in a circuit of normal conductors is done by help of Ohm’s law, Kirchhoff’s laws and other network theorems but trivial use of these laws in case of a resistanceless circuit lead to wrong results. For the case of normal conductors currents are mainly determined by the resistances but in a resistanceless circuit we need to consider self-inductances and mutual inductances also. This article describes the analysis of such non-trivial cases.
Published by roy 66 months ago in Physics | +3 votes | 0 comments
In 1908 a mysterious blast took place in Tunguska, Siberia when a body from space exploded before it hit the earths crust. This resulted in a blast of the magnitude of 1000 A bombs dropped on Hiroshima. The incident has fired the imagination of scientists who have given varied theories for the explosion. Many have opined that the blast was caused by a alien spaceship while others have concluded it was a body from space.
Published by Madan G Singh 67 months ago in Physics | +7 votes | 0 comments
A Geiger Counter is a device that is used to detect radiation. The device needs careful handling as it is a sensitive instrument. In addition anybody dealing with radiation must take precautions so that he or she does not come in contact with radiation or its source. The basic aim of the Geiger Counter is detect radiation by the ionizing effects radiation creates.
Published by Madan G Singh 69 months ago in Physics | +5 votes | 2 comments
The earliest sources of magnetism were magnets such as the famous loadstone of Magnesia. Many scientists began investigating the properties of magnetism associated with electric currents when they discovered that a compass needle is deflected by an electric current. One of the objective of this experiment is to differentiate magnetic induction from magnetism. Continue reading to know more.
Published by Jessie Agudo 69 months ago in Physics | +11 votes | 2 comments
Modern airliners have complex avionic systems. These need to be monitored for proper efficacy. This is done by Numerik Control systems called open and closed loops. These are important because of the power electronic on board. The open and closed loops systems help compare the operating parameters of the aircraft
Published by Madan G Singh 69 months ago in Physics | +1 votes | 1 comments
This article will teach you some basic knowledge about quantum physics. Many different complex mathematical and scientific terms are used in this article. The article will teach you about Steven W. Hawking's research and ultimate goal in life. You will learn how the magnitude of his disease has limited him to a wheel chair.
Published by Robert Biermann 70 months ago in Physics | +0 votes | 0 comments
In the study of motion, there are two quantities we should understand, these are the scalar and vector quantities. A scalar quantity is described by its magnitude only while a vector quantity has both magnitude and direction. Force, velocity, acceleration, displacement, and electric field are vector quantities. Speed, distance, mass, volume, time, density are some examples of scalar quantities. The objective of the experiment is to determine the direction of the resultant force of a simple force...
Published by Jessie Agudo 69 months ago in Physics | +2 votes | 0 comments
Almost everything around you can be measured. The clothes you wear, the food you eat, the distance between two planets or even the width of a bacteria can be measured. Physics as a science involves measurement. By measurement, we mean comparison with a standard. One of the objective of this experiment is to measure the length of some objects accurately. And to know the relationship of the metric system to English system of units.
Published by Jessie Agudo 70 months ago in Physics | +5 votes | 1 comments
Little did we know, every time we set sail our eyes unto the sea of stars in the night skies, we tend to be making a journey back to the far distant past, even as distant as the ages before the human specie started to roam this Earth.
Published by Unofre Pili 231 months ago in Physics | +0 votes | 0 comments
Mathematica has a beautiful implementation of graph plotting which is used worldwide by scientists, students, engineers in various fields of their work. Multiple graph plotting, piecewise graph plotting, manipulation of a plot, parametric graph plotting, graph plotting by importing data from a file etc. can be done very easily in Mathematica.
Published by roytanay 70 months ago in Physics | +2 votes | 0 comments
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