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Nikola Tesla: Engineer and Inventor

The man who invented the 20th century is none other than Nikola Tesla. He is serbian-american inventor, electrical engineer, mechanical engineer and a futurist. Best known for Alternating current(AC) and electrical supply system. Nikola tesla  Born - 10 July, 1856. Died -  7 January, 1943 (83 years). Beginning with a quote of Nikola Tesla- " The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane. " Eidetic Memory  Tesla read many works. He can memorize complete books. He supposedly possessed a photographic memory. He was a polyglot, speaking eight languages: Serbo-Croatian, Czech, English, French, German, Hungarian, Italian, and Latin. Tesla related in his autobiography that he experienced detailed moments of inspiration. He often see blinding flashes of light before his eyes, also accompanied by visions. Many times the visions were related to the word or the idea that he was currently...
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Production , Properties and Uses Of X-Rays

X-Rays  Introduction X rays discovered by William Roentgen in 1895 honoured by Nobel Prize in 1901. Basically are high energy photons (1- 100Kev) or electro-magnetic radiation, having a very short wavelength of the order of 1A⁰. Typical x-ray wavelength lies between the range of  1 A⁰ and 100A⁰. Accordingly they are classified into hard X-rays and soft X-rays.  Uses of X rays are multifold. Usually they are used in surgery, radiotherapy, engineering, industry, detective department, scientific research and so many other areas. Hence, the name X-rays is popularly known even to a common man. Production Of X-RAYS The modern X-ray tube was designed by Dr.Coolidge and is known after his name as coolidge tube. It is widely used for commercial and medical purposes. Construction and working of Coolidge Tube The construction of coolidge tube to produce X-rays is schematically shown below. The cathode C consists of a tungsten filament  heated by p...
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Isaac Newton was an alchemist ? Was Isaac Newton searching for The Philosophers Stone ?

Many of you have an image of Sir Isaac Newton. You probably think Issac Newton as a person who contributed immensely in Physics through his laws of motion, gravitation which were the foundation of classical mechanics which we study today. Was Isaac Newton an alchemist? Or many of you think Isaac Newton as a mathematician who invented calculus(debatable). Or the person who proved the society wrong by proving that the light is made up of different colours, with his research on optics. But there is also an other side of his personality. He was heavily interested in alchemy and other occult practices. The world came to know this side of him by the unpublished papers written by him on these topics. Sir Isaac Newton was heavily involved in Alchemy . It is considered as an occult science. Alchemy is the medieval forerunner of chemistry, concerned with the transmutation of matter, in particular with attempts to convert base metals into gold or find a universal elixir. S...
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