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Nikola Tesla enters the Graz Polytechnic School in 1875 on a scholarship. He excels his first year, never missing a class and achieving top grades. During his second year, Tesla takes up gambling, a habit that negatively affects his studies. In his third year at Graz, Tesla loses his scholarship. Though these were challenging years, Tesla’s education and experiences at Graz had a great impact on his future work, as indicated in this excerpt from his autobiography.
It was in the second year of my studies that we received a Gramme dynamo from Paris, having the horseshoe form of a laminated field magnet, and a wire-wound armature with a commutator. It was connected up and various effects of the currents were shown. While Prof. Poeschl was making demonstrations, running the machine as a motor, the brushes gave trouble, sparking badly, and I observed that it might be possible to operate a motor without these appliances. But he declared that it could not be done and did me the honor of delivering a lecture on the subject, at the conclusion of which he remarked: ‘Mr. Tesla may accomplish great things, but he certainly never will do this. It would be equivalent to converting a steadily pulling force, like that of gravity, into a rotary effort. It is a perpetual motion scheme, an impossible idea.’ But instinct is something which transcends knowledge. We have, undoubtedly, certain finer fibers that enable us to perceive truths when logical deduction, or any other willful effort of the brain, is futile. For a time I wavered, imprest by the professor’s authority, but soon became convinced I was right and undertook the task with all the fire and boundless confidence of youth.
I started by first picturing in my mind a direct-current machine, running it and following the changing flow of the currents in the armature. Then I would imagine an alternator and investigate the processes taking place in a similar manner. Next I would visualize systems comprising motors and generators and operate them in various ways. The images I saw were to me perfectly real and tangible. All my remaining term in Gratz was passed in intense but fruitless efforts of this kind, and I almost came to the conclusion that the problem was insolvable.
Explore the inventor's most influential moments and discoveries using our interactive Tesla Timeline.
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