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Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.





Einstein's Four Equations. Einstein's new 'Generalized Theory of Gravitation'. The theory attempts to interrelate all known p...
Einstein's Four Equations. Einstein's new 'Generalized Theory of Gravitation'. The theory attempts to interrelate all known physical phenomena and bring relativity and the quantum theory into a single system. 1947.





-History-XIXc -Johann Gottlieb Fichte May 19, 1762 – January 27, 1814, was a German philosopher He was one of the founding fi...
-History-XIXc -Johann Gottlieb Fichte May 19, 1762 – January 27, 1814, was a German philosopher He was one of the founding figures of the philosophical movement known as German idealism, a movement that developed from the theoretical and ethical writings. -History-XIXc -Johann Gottlieb Fichte May 19, 1762 – January 27, 1814, was a German philosopher He was one of the founding figures of the philosophical movement known as German idealism, a movement that developed from the theoretical and ethi





Cobden, Richard (Dunford Farm, Sussex ,1804-London, 1865). English industrial, economist and politician who fought against pr...
Cobden, Richard (Dunford Farm, Sussex ,1804-London, 1865). English industrial, economist and politician who fought against protectionism. He favored free trade. Engraving.





Faclimile of plate No. 11, bombards and shawms, from the historical and music theoretical literature, Syntagma Musicum, music...
Faclimile of plate No. 11, bombards and shawms, from the historical and music theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss





Albert Einstein taking his oath of citizenship. Also taking swearing allegiance in are Helen Dukas, and Einstein's daughter, ...
Albert Einstein taking his oath of citizenship. Also taking swearing allegiance in are Helen Dukas, and Einstein's daughter, Margot. Oct. 1, 1940.





Yellow willow trees and the futuristic architecture of the Perimeter Institute building in Waterloo Canada





Facsimile of plate No. 23, military drums and whistles, from the historical and music theoretical literature, Syntagma Musicu...
Facsimile of plate No. 23, military drums and whistles, from the historical and music theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss





Russian physicist Vladimir Zakharov by Anonymous /© The Lebedev Physics Institute (FIAN), Moscow/Russia/Portrait





Removal By Ox-Cart Of Cut Timber From Theoretically Protected Trees In Spiny Forest. Ifaty, Southwestern Madagascar.





Johann Wolfgang von Goethe, 1749 – 1832 German writer, pictorial artist, biologist, theoretical physicist and polymath From T...
Johann Wolfgang von Goethe, 1749 – 1832 German writer, pictorial artist, biologist, theoretical physicist and polymath From The Maclise Portrait Gallery, published 1898





Madame Joliot-Curie visits of Albert Einstein. The two Nobel Prize winning physicists talk in the study of Einstein's home in...
Madame Joliot-Curie visits of Albert Einstein. The two Nobel Prize winning physicists talk in the study of Einstein's home in Princeton. March 18, 1948.





Blue historic Waterloo Central Railway train car with modern Perimeter Institute building





Friedrich Engels (1820-1895). German social scientist, author, political theorist, philosopher, and father of communist theor...
Friedrich Engels (1820-1895). German social scientist, author, political theorist, philosopher, and father of communist theory, alongside Karl Marx. Colored portrait.





Removal By Ox-Cart Of Cut Timber From Theoretically Protected Trees In Spiny Forest. Ifaty, Southwestern Madagascar.





Futuristic architecture at the front of the Perimeter Institute building in Waterloo Canada





Facsimile of plate No. 13, bagpipes, crumhorn and cornett, from the historical and music theoretical literature, Syntagma Mus...
Facsimile of plate No. 13, bagpipes, crumhorn and cornett, from the historical and music theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss





Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.





MIRAGE. MIRAGE Mirages. Illustration of a mirage, an optical phenomenon which occurs when light rays are refracted as they pa...
MIRAGE. MIRAGE Mirages. Illustration of a mirage, an optical phenomenon which occurs when light rays are refracted as they pass into a layer of warm air. Because of the Earth´s curvature, the image of an object (here, a village) located behind the horizon line, and theoretically invisible, becomes visible above the horizon.





Yellow green historic Waterloo Central Railway train car with modern Perimeter Institute building





Albert Einstein and his wife Elsa in exile from Nazi Germany. An emissary of the Central Belgium Police Bureau warned Profess...
Albert Einstein and his wife Elsa in exile from Nazi Germany. An emissary of the Central Belgium Police Bureau warned Professor Albert Einstein that the Belgium police could not guarantee his safety from Nazi attack. After renouncing his German citizenship in 1933, the Nazi's put a $5,000 bounty on his head. Sept. 15, 1933.





Prime Minister Pandit Jawaharlal Nehru, of India, says goodbye to Dr. Albert Einstein at his home in Princeton. L-R: Mrs. Ind...
Prime Minister Pandit Jawaharlal Nehru, of India, says goodbye to Dr. Albert Einstein at his home in Princeton. L-R: Mrs. Indira Gandhi, Nehru's daughter, Dr. Einstein, Prime Minister Nehru, and Madam Vijaya Lakshi Pandit, Indian Ambassador to the United States. Nov. 5, 1949.





Facsimile of a plate with a bass viol and plucked string instruments, from the historical and music theoretical literature, S...
Facsimile of a plate with a bass viol and plucked string instruments, from the historical and music theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss





Crystallized Abstraction (Day) 2001 Diana Ong (b.1940/Chinese-American) Computer graphics





Albert Einstein's study at the institute for Advance Study at Princeton University. Photo was taken after Einstein's sudden d...
Albert Einstein's study at the institute for Advance Study at Princeton University. Photo was taken after Einstein's sudden death on May 18, 1955.





Hippocrates (on right) and Galen. Where Hippocrates touches the rosebush it flowers, whereas Galen's side is nothing but thor...
Hippocrates (on right) and Galen. Where Hippocrates touches the rosebush it flowers, whereas Galen's side is nothing but thorns. By the 17th century, the more empirically oriented Hippocrates was regarded as superior to the more theoretical Galen. Engraving from a 1677 German print in DE MORBO ATTONITO LIBER UNUS, by Justus Cortnumm.





Historic drawing from the 19th century, title page, historical and music_theoretical literature, Syntagma Musicum, musicologi...
Historic drawing from the 19th century, title page, historical and music_theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss, 1571 _ 1621, a German composer, organist, court conductor and scholar during th. Historic drawing from the 19th century, title page, historical and music_theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss, 1571 _ 1621, a German composer, organist, court conductor and schol





José Coll y Vehí (1823-1876). Teórico literario, cervantista, retórico y paremiólogo español. Grabado de "Historia de España ...
José Coll y Vehí (1823-1876). Teórico literario, cervantista, retórico y paremiólogo español. Grabado de "Historia de España Blas Camí", editor, año 1910. Coloreado.





Albert Einstein with Israel's Prime Minister, David Ben-Gurion. They talked at Einstein's Princeton home. May 13, 1951





Charlote Perkins Gilman (1860-1935), American writer established a theoretic foundation for 20th century feminism and the wom...
Charlote Perkins Gilman (1860-1935), American writer established a theoretic foundation for 20th century feminism and the woman's rights movement.





Logs, violins, double bass, plate 21 of the historical and music_theoretical literature Syntagma Musicum, musicological writi...
Logs, violins, double bass, plate 21 of the historical and music_theoretical literature Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss





Theoretic education _ preparation at the intermediate testing, formulary, training in metal skills





Jeremy Bentham 1748-1832. English philosopher,economist and theoretical jurist. From the book 'Gallery of Portraits' publishe...
Jeremy Bentham 1748-1832. English philosopher,economist and theoretical jurist. From the book 'Gallery of Portraits' published London 1833.





Russian theoretical physicist, astrophysicist Vitaly L. Ginzburg by Anonymous /© The Lebedev Physics Institute (FIAN), Moscow...
Russian theoretical physicist, astrophysicist Vitaly L. Ginzburg by Anonymous /© The Lebedev Physics Institute (FIAN), Moscow/2003/Russia/Portrait,Genre





Facsimile of plate No. 26, dulcimer and lute, from the historical and music theoretical literature, Syntagma Musicum, musicol...
Facsimile of plate No. 26, dulcimer and lute, from the historical and music theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss





Two blowers or bellows_blowers of an organ, helping to supply the air to organs, facsimile of a image panel 16 from the histo...
Two blowers or bellows_blowers of an organ, helping to supply the air to organs, facsimile of a image panel 16 from the historical and music theoretical literature, Syntagma Musicum, musicological writings by Michael Praetorius or Schultheiss





Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.





Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.





Albert Einstein (1879-1955), sunbathing in 1932, the year before renounced his German citizenship for political reasons and e...
Albert Einstein (1879-1955), sunbathing in 1932, the year before renounced his German citizenship for political reasons and emigrated to America to take the position of Professor of Theoretical Physics at Princeton.





Abstract #34 1992 Diana Ong (b.1940 Chinese-American) Computer graphics Private Collection





Albert Einstein giving a violin recital at for the benefit of American Friends Service Committee for Refugee Children. At the...
Albert Einstein giving a violin recital at for the benefit of American Friends Service Committee for Refugee Children. At the piano is Gaby Casasesus. Jan. 24, 1941.





Madame Joliot-Curie and Albert Einstein. The two Nobel Prize winning physicists talk on the steps of Einstein's home in Princ...
Madame Joliot-Curie and Albert Einstein. The two Nobel Prize winning physicists talk on the steps of Einstein's home in Princeton. March 1948.





Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.





Futuristic architecture of the Perimeter Institute building reflecting the historic Waterloo Central Railway in Spring





Albert Einstein (1879-1955), theoretical physicist, philosopher and author. Seen here in front of bookshelves. Date: 1922

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