All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident: Arthur Schopenhauer -- In questions of science the authority of a thousand is not worth the humble reasoning of a single individual: Galileo Galilei -- Science is a wonderful thing if one does not have to earn one's living at it: Albert Einstein -- When you have eliminated the impossible, what ever remains, however improbable must be the truth: Sir Arthur Conan Doyle -- We all agree that your theory is crazy, but is it crazy enough? Niels Bohr -- Whenever a true theory appears, it will be its own evidence. Its test is that it will explain all phenomena: Ralph Waldo Emerson -- Since the mathematicians invaded Relativity, I do not understand it myself anymore: Albert Einstein -- I would say that the aether is a medium invented by man for the purpose of propagating his misconceptions from one place to another: W.F.G. Swann: -- Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone: Albert Einstein -- Physics is mathematical not because we know so much about the physical world, but because we know so little: Bertrand Russell -- If I could explain it to the average person, I would not have been worth the Nobel Prize: R. P. Feynman -- I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use: Galileo Galilei -- How dare we speak of the laws of chance? Is not chance the antithesis of all law?: Bertrand Russell -- Only two things are infinite, the universe and human stupidity, and I´m not sure about the former: Albert Einstein -- The glory of mathematics is that you don't have to say what you are talking about: Richard Feynman -- Anything is possible if you don´t know what you are talking about: Author Unknown -- In life, everything is relative - except Einstein´s theory: Leonid S. Sukhorukov -- Don´\'t worry about people stealing your ideas. If your ideas are any good, you´ll have to ram them down people´s throats: Howard Aiken --A day will come undoubtedly when the ether will be discarded as useless: H. Poincaré -- First they tell you you´re wrong and they can prove it; then they tell you you´re right but it isn´t important; then they tell you it´s important but they knew it all along: Charles Kettering -- It is not once nor twice but times without number that the same ideas make their appearance in the world: Aristotle -- The opposite of a true statement is a false statement. The opposite of a profound truth may well be another profound truth: Niels Bohr -- A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it: Max Planck -- Euclid taught me that without assumptions there is no proof. Therefore, in any argument, examine the assumptions: Eric Temple Bell -- Half this game is ninety percent mental: Yogi Berra

Alien’s Story: no magnetic field


Jadhav, Ghanshyam Harishchandra




Mechanics / Electrodynamics



Date Published:

June 30, 2013






On 21 April 1820, during a lecture, Ørsted noticed to his surprise that a compass needle was deflected when an electric current from a battery was switched on and off. That finding leaded to a conclusion that the current carrying wire must be producing a magnetic field which must be applying a magnetic force on the magnetic needle. In perception of that one can easily guess that if a current in a wire exerts a magnetic force on a compass needle, then two such wires also should interact magnetically. This was guessed by Andre Marie Ampere and confirmed experimentally too. These findings leaded to the rapid development of the classical electrodynamics. In the rapid development one question left to be answered yet is that why a current carrying wire is producing a magnetic field. If the nature of the magnetic field, what we suppose today, is the real nature then why magnetic monopoles are absent in the universe. Suppose one could have found the interaction between two current carrying wires before Ørsted’s finding then what he could have guessed about the cause of interaction. At first he might have guessed the cause of interaction as an electric force and might have tried to solve the problem. Today’s picture of electricity might be different. The Ørsted’s finding forced people to think about the magnetic force as the cause of the interaction.

<<< Back