The Physics niche

The area around a magnet in which it can attract or repel objects or in which a magnetic force can be detected is called the magnetic field of the magnet.

QUOTE BY GALILEO GALILEI
"The law of nature are written by the hand of GOD in the language of mathematics."

FARADAY'S LAWS OF ELECTROLYSIS;
Michael Faraday stated two law of electrolysis -:
1st law states that “the mass of a substance liberated during electrolysis is directly proportional to the quantity of charge that passed through it”.
Mathematically,
Let the mass of substance be represented by M
the quantity of charge be represented by Q
Therefore,
M ¤ Q
M = ZQ where Q = It ( current × time)
M=ZIt
Z= M/It where Z is a constant called the electrochemical equivalent.
2nd law states that when the same quantity of electricity is passed through solution of different electrolysis, the number of moles of the same element deposited is inversely proportional to the charge on the ions at the elements.
Mathematically,
Number of moles deposited ¤ 1/charge of the ion.

Newton's laws of motion
Isaac Newton, one of the greatest scientists discovered how forces are related to motion, he also stated three important laws of motion known as Newton's laws of motion.
Newton's First Law of motion( Inertia) states that every object continues in its state of rest( v=0) or of a uniform motion in a straight line( no displacement ) unless acted upon by an external force. For example, a book placed on a table will remain there until something pushes it or carry it . Inertia is the tendency of bodies( objects) to remain in their state of rest or a uniform linear motion in the absence of applied forces.

Electroplating : How to copper plate a key
What is Copper Plating?
Copper plating is the process of plating a layer of copper electrolytically on the surface of an item. It takes place in an electrolytic cell where electrolysis which uses direct electric current to dissolve a copper rod and transport the copper ions to the item. Into a container of water are placed a copper rod, and the item. The water contains an ionic solution which allows a direct electric current to flow from the copper rod to the item. The copper rod is the anode and the item is the cathode.
What You Need:
1.5-volt D battery with battery holder
Two alligator clip leads or insulated wire
Beaker or glass
Copper sulfate
Copper electrode (or coil of copper wire)
Brass key
Safety equipment
What You Do:
Prepare the key for copper-plating by cleaning it with toothpaste or soap and water. Dry it off on a paper towel.
Stir copper sulfate into some hot water in a beaker until no more will dissolve. Your solution should be dark blue. Let it cool.
Use one alligator clip to attach the copper electrode to the positive terminal of the battery (this is now the anode) and the other to attach the key to the negative terminal (now called the cathode).
Partially suspend the key in the solution by wrapping the wire lead loosely around a pencil and placing the pencil across the mouth of the beaker. The alligator clip should not touch the solution.
Place the copper strip into the solution, making sure it doesn’t touch the key and the solution level is below the alligator clip. An electrical circuit has now formed and current is flowing.
Leave the circuit running for 20-30 minutes, or until you are happy with the amount of copper on the key.
What Happened:
The copper sulfate solution is an electrolyte that conducts electricity from one electrode to the other. When the current is flowing, oxidation (loss of electrons) happens at the copper anode, adding copper ions to the solution. Those ions travel on the electric cur

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would love to get your view on the big bang theory.

Albert Einstein born
On March 14, 1879, Albert Einstein is born, the son of a Jewish electrical engineer in Ulm, Germany. Einstein’s theories of special and general relativity drastically altered man’s view of the universe, and his work in particle and energy theory helped make possible quantum mechanics and, ultimately, the atomic bomb.

After a childhood in Germany and Italy, Einstein studied physics and mathematics at the Federal Polytechnic Academy in Zurich, Switzerland. He became a Swiss citizen and in 1905 was awarded a Ph.D. from the University of Zurich while working at the Swiss patent office in Bern. That year, which historians of Einstein’s career call the annus mirabilis–the “miracle year”–he published five theoretical papers that were to have a profound effect on the development of modern physics.

In the first of these, titled “On a Heuristic Viewpoint Concerning the Production and Transformation of Light,” Einstein theorized that light is made up of individual quanta (photons) that demonstrate particle-like properties while collectively behaving like a wave. The hypothesis, an important step in the development of quantum theory, was arrived at through Einstein’s examination of the photoelectric effect, a phenomenon in which some solids emit electrically charged particles when struck by light. This work would later earn him the 1921 Nobel Prize in Physics.

In the second paper, he devised a new method of counting and determining the size of the atoms and molecules in a given space, and in the third he offered a mathematical explanation for the constant erratic movement of particles suspended in a fluid, known as Brownian motion. These two papers provided indisputable evidence of the existence of atoms, which at the time was still disputed by a few scientists.

Einstein’s fourth groundbreaking scientific work of 1905 addressed what he termed his special theory of relativity. In special relativity, time and space are not absolute, but relative to the motion of the observer. Thus, two observers traveling at great speeds in regard to each other would not necessarily observe simultaneous events in time at the same moment, nor necessarily agree in their measurements of space. In Einstein’s theory, the speed of light, which is the limiting speed of any body having mass, is constant in all frames of reference. In the fifth paper that year, an exploration of the mathematics of special relativity, Einstein announced that mass and energy were equivalent and could be calculated with an equation, E=mc2.

READ MORE: Albert Einstein: Fact or Fiction?

Although the public was not quick to embrace his revolutionary science, Einstein was welcomed into the circle of Europe’s most eminent physicists and given professorships in Zurich, Prague and Berlin. In 1916, he published “The Foundation of the General Theory of Relativity,” which proposed that gravity, as well as motion, can affect the intervals of time and of space. According to Einstein, gravitation is not a force, as Isaac Newton had argued, but a curved field in the space-time continuum, created by the presence of mass. An object of very large gravitational mass, such as the sun, would therefore appear to warp space and time around it, which could be demonstrated by observing starlight as it skirted the sun on its way to earth. In 1919, astronomers studying a solar eclipse verified predictions Einstein made in the general theory of relativity, and he became an overnight celebrity. Later, other predictions of general relativity, such as a shift in the orbit of the planet Mercury and the probable existence of black holes, were confirmed by scientists.

During the next decade, Einstein made continued contributions to quantum theory and began work on a unified field theory, which he hoped would encompass quantum mechanics and his own relativity theory as a grand explanation of the workings of the universe. As a world-renowned public figure, he became increasingly political, taking up the cause of Zionism and speaking out against militarism and rearmament. In his native Germany, this made him an unpopular figure, and after N**i leader Adolf Hi**er became chancellor of Germany in 1933 Einstein renounced his German citizenship and left the country.

He later settled in the United States, where he accepted a post at the Institute for Advanced Study in Princeton, New Jersey. He would remain there for the rest of his life, working on his unified field theory and relaxing by sailing on a local lake or playing his violin. He became an American citizen in 1940.

In 1939, despite his lifelong pacifist beliefs, he agreed to write to President Franklin D. Roosevelt on behalf of a group of scientists who were concerned with American inaction in the field of atomic-weapons research. Like the other scientists, he feared sole German possession of such a weapon. He played no role, however, in the subsequent Manhattan Project and later deplored the use of atomic bombs against Japan. After the war, he called for the establishment of a world government that would control nuclear technology and prevent future armed conflict.

In 1950, he published his unified field theory, which was quietly criticized as a failure. A unified explanation of gravitation, subatomic phenomena, and electromagnetism remains elusive today. Albert Einstein, one of the most creative minds in human history, died in Princeton in 1955.

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The centre of gravity of a body is defined as the point through which its resultant weight acts.