1884Invention of the Closed Core High Efficiency Transformer

Hungarian engineers Károly Zipernowsky, Ottó Bláthy and Miks...
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Year
1828
1873
1884
1938
1974
1980

⚙️ Ányos Jedlik Invents First Commutated Rotary Electromechanical Machine

Hungarian physicist Ányos Jedlik invents the first commutated rotary electromechanical machine with electromagnets.
Ányos Jedlik Invents First Commutated Rotary Electromechanical Machine (1828)
ElectricityElectromagnetismPhysicsMechanical Engineering
HungaryHungary

💡 Zénobe Gramme Develops the Gramme Dynamo

Zénobe Gramme invents the first commercial electrical generator, the Gramme machine.
Zénobe Gramme Develops the Gramme Dynamo (1873)
ElectricityElectrical EngineeringIndustrial RevolutionPower Generation
FranceFrance

💡 Invention of the Closed Core High Efficiency Transformer

Hungarian engineers Károly Zipernowsky, Ottó Bláthy and Miksa Déri invent the closed core high efficiency transformer and the AC parallel power distribution.
Invention of the Closed Core High Efficiency Transformer (1884)
Electrical EngineeringIndustrial RevolutionScientific Innovation
HungaryHungary

🖊️ László Bíró Patents the Ballpoint Pen

June 15: Hungarian newspaper editor László Bíró fills a British patent of the first commercially successful ballpoint pen. This would popularize the instrument, currently the most widely used for writing, after World War II.
László Bíró Patents the Ballpoint Pen (1938)
PatentDesignWorld War IIPost-WarConsumer Goods
United KingdomUnited KingdomHungaryHungary

🧩 Rubik's Cube Invented

The Rubik's cube is invented by Ernő Rubik which went on to be the best selling puzzle ever.
Rubik's Cube Invented (1974)
Popular CultureRecreationIntellectual Property
HungaryHungary

🧩 Rubik's Cube Introduced to the World

Invention of the Rubik's Cube.
Rubik's Cube Introduced to the World (1980)
ToysInventionsGames
HungaryHungary