The Egg of Columbus from Nikola Tesla
Most Tesla's experiments and scientific activities are too complicated for amateur scientists. However, his Egg of Columbus demonstration is appropriate for science hobbyists and advanced science fair projects.
The egg of Columbus or Columbus's egg usually means an idea or discovery that seems simple or easy after the fact.
The expression refers to a popular story of how Columbus, having been told that discovering the Americas was no great accomplishment, challenged his critics to make an egg stand on its tip; and, after they gave up, he did it himself by tapping the egg on the table so as to flatten its tip.
The expression refers to a popular story of how Columbus, having been told that discovering the Americas was no great accomplishment, challenged his critics to make an egg stand on its tip; and, after they gave up, he did it himself by tapping the egg on the table so as to flatten its tip.
Tesla's Egg of Columbus, basically, is a metal egg that stands on end in a rotating magnetic field.
Nikola Tesla, at the 1893 World's Columbian Exposition in Chicago, demonstrated a device he constructed known as the "Egg of Columbus". It was used to demonstrate and explain the principles of the rotating magnetic field model and the induction motor. Tesla's Egg of Columbus performed the feat of Columbus with a copper egg in a rotating magnetic field. The egg spins on its major axis, standing on end due to gyroscopic action.
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L'Œuf de Colomb (Egg of Columbus) de Nicolas Tesla exposé lors de l'exposition de 1893 à Chicago USA.
Cet "œuf" a été présenté pour expliquer le principe du courant alternatif au public, alors qu'Edison et les premières sociétés de production d'électricité derrière lui prônaient plutôt le courant continu. Cette démonstration expliquait ainsi le moteur à induction et les champs magnétiques rotatifs.
Une copie de cet engin est actuellement présenté au musée Nikola Tesla de Belgrade.
Une copie de cet engin est actuellement présenté au musée Nikola Tesla de Belgrade.
Nikola Tesla est souvent considéré comme l’un des plus grands scientifiques dans l’histoire de la technologie, pour avoir déposé plus de sept cents brevets (qui seront pour beaucoup d'entre eux attribués à Thomas Edison).
Depuis 1943, Tesla est considéré comme le créateur de la radio. Wiki
Depuis 1943, Tesla est considéré comme le créateur de la radio. Wiki
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