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    Maxwell, Light is an Electromagnetic Wave  
James Clerk Maxwell was a Scottish mathematical physicist. His most notable achievement was to formulate the classical theory of electromagnetic radiation, bringing together for the first time electricity, magnetism, and light as manifestat...
 
    Eduard Suess, Discovery Supercontinent  
Eduard Suess was a geologist who was an expert on the geography of the Alps. He is responsible for discovering two of the Earth's major now-lost geographical features, the supercontinent Gondwana (proposed 1861) and the Tethys Ocean. Sue...
 
    Georg Cantor, Set Theory, Infinity of Infinities  
Georg Cantor was a German mathematician. He created set theory, which has become a fundamental theory in mathematics. Cantor established the importance of one-to-one correspondence between the members of two sets, defined infinite and well-...
 
    Gottlob Frege, The Foundations of Mathematics  
Friedrich Ludwig Gottlob Frege was a German philosopher, logician, and mathematician. Considered a major figure in mathematics, he is responsible for the development of modern logic and making contributions to the foundations of mathemat...
 
    Doc Holliday, Gunfight at the O.K. Corral  
John Henry "Doc" Holliday was an American gambler, gunfighter, and dentist, and a good friend of Wyatt Earp. He is best known for his role as a temporary deputy marshal in the events leading up to and following the Gunfight at the O.K. Corr...
 
    Sigmund Freud, Father of Psychoanalysis  
Sigmund Freud was an Austrian neurologist who became known as the founding father of psychoanalysis. In creating psychoanalysis, a clinical method for treating psychopathology through dialogue between a patient and a psychoanalyst, Freud...
 
    Theodore Roosevelt, 26th Us President, 1901-1909  
Theodore Roosevelt is mostly remembered as the twenty-sixth President of the United States (1901-1909), but this astonishingly multifaceted man was a great many other things as well. In addition to holding elective office as a New York S...
 
    Madame Curie, Discovery of Radioactivity  
Marie Sklodowska Curie was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, the first person and only woman to win twice, the only person...
 
    Bertrand Russell, Philosopher & Mathematician  
Bertrand Arthur William Russell, 3rd Earl Russell was a British philosopher, logician, mathematician, historian, writer, social critic, political activist, and Nobel laureate. At various points in his life, Russell considered himself a libe...
 
    Albert Schweitzer, Humanitarian  
Albert Schweitzer was a French-German theologian, organist, writer, humanitarian, philosopher, and physician. A Lutheran, Schweitzer challenged both the secular view of Jesus as depicted by historical-critical methodology current at this ti...
 
    Albert Einstein, Relativity Theory - 1905  
Albert Einstein was a German-born theoretical physicist. Einstein developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). Einstein's work is also known for its influence on the philosophy...
 
    Otto Hahn, Father of Nuclear Chemistry  
Otto Hahn was a German chemist and pioneer in the fields of radioactivity and radiochemistry. He was exclusively awarded the Nobel Prize in Chemistry in 1944 for the discovery and the radiochemical proof of nuclear fission. He is referred t...
 
    Alfred Wegener, Discovery Plate Tectonics  
Alfred Lothar Wegener was a German polar researcher, geophysicist and meteorologist. During his lifetime he was primarily known for his achievements in meteorology and as a pioneer of polar research, but today he is most remembered as th...
 
    John Maynard Keynes, Economist  
John Maynard Keynes was a British economist whose ideas fundamentally changed the theory and practice of macroeconomics and the economic policies of governments. He built on and greatly refined earlier work on the causes of business cycles,...
 
    Erwin Schrödinger, Schrödinger's Cat  
Erwin Schrödinger, sometimes written as Erwin Schrodinger or Erwin Schroedinger, was a Nobel Prize-winning Austrian physicist who developed a number of fundamental results in the field of quantum theory, which formed the basis of wave mecha...
 
       
         
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