Budapest. Nikola, while working and visiting Ganz & Co., notices a non-functioning ring transformer on the ground in the warehouse. It’s broken because it’s caused by incorrectly wound copper wire. Tesla turns it on and places an iron ball on the wooden disk that covers the cylindrical transformer. To his great satisfaction, the iron ball begins to rotate. He deduces that the transformer, broken due to incorrect windings, generates two electromagnetic fields, which create a rotating field. The tests end abruptly when Nikola Tesla and his friend Szigeti are finally called by Tivadar Puskas to work for Edison in Paris. Once in the French capital, Tesla explains to Edison’s executives his idea for a rotating field, this time created by three phases instead of two (to ensure the direction of rotation). But to his disappointment, Edison’s people are not at all impressed by the idea.
