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Stock Photos - THEORETICAL (224 results)

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Stock Photo #4094-436, A theoretical physicist at work in his office.
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A theoretical physicist at work in his office.
Stock Photo #1895-14588, Stephen Hawking, English theoretical physicist, 1990s.
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Stephen Hawking, English theoretical physicist, 1990s.
Stock Photo #1848-34062, Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.
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Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.
Stock Photo #1895-9026, Sadi Carnot, French theoretical physicist, 1806.
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Sadi Carnot, French theoretical physicist, 1806.
Stock Photo #1825-4575, Couch and paintings in a living room
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Couch and paintings in a living room
Stock Photo #1574R-018241, Figures 1990 Diana Ong (b.1940 Chinese-American) Computer graphics
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Figures 1990 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #4048-9528, 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.
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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.
Stock Photo #1566-699569, -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
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-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
Stock Photo #4128R-28125, Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
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Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which...
Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
Stock Photo #1758R-8869, Close-up of bottles
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Close-up of bottles
Stock Photo #1035-12892, United States: May, 1938 Theoretical physicist Albert Einstein reading a letter
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United States: May, 1938 Theoretical physicist Albert Einstein reading a letter
Stock Photo #1574R-018166, Luna 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
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Luna 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1574R-018130, Abstract #9 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
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Abstract #9 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1574R-011848, Beyond Thought 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
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Beyond Thought 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1825-2293, Interiors of a bedroom
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Interiors of a bedroom
Stock Photo #1574R-018102, Arthur 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
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Arthur 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4128R-2601, Black hole warping space_time, computer artwork.
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Black hole warping space_time, computer artwork.
Stock Photo #1758R-8437, Abstract view of water
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Abstract view of water
Stock Photo #4128R-4682, Mathematical universe, conceptual artwork
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Mathematical universe, conceptual artwork
Stock Photo #1574R-018206, Paint Palette 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Paint Palette 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1574R-018087, Colored Swirl 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
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Colored Swirl 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4409-42741, Cobden, Richard (Dunford Farm, Sussex ,1804-London, 1865). English industrial, economist and politician who fought against protectionism. He favored free trade. Engraving.
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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.
Stock Photo #1895-8517, Rudolf Clausius, German theoretical physicist, 1880-1888.
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Rudolf Clausius, German theoretical physicist, 1880-1888.
Stock Photo #4409-131251, Jose Coll Vehi (1823 -1876). Spanish literary theorist. Engraving in History of Spain, edited by Blas Cami, 1910.
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Jose Coll Vehi (1823 -1876). Spanish literary theorist. Engraving in History of Spain, edited by Blas Cami, 1910.
Stock Photo #1758R-8685, Close-up of a pink textured backgrounds
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Close-up of a pink textured backgrounds
Stock Photo #1758R-8811, Close-up of plastic stencils
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Close-up of plastic stencils
Stock Photo #1895-10905, James Clerk Maxwell, Scottish physicist, c 1870s.
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James Clerk Maxwell, Scottish physicist, c 1870s.
Stock Photo #1848-593560, Faclimile of plate No. 11, bombards and shawms, from the historical and music theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss
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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
Stock Photo #4325-665, Portrait of Professor Dick, Leading Theoretical Physicist, in His Office
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Portrait of Professor Dick, Leading Theoretical Physicist, in His Office
Stock Photo #1895-22618, Jacobus Henricus van’t Hoff, Dutch theoretical chemist, 1904.
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Jacobus Henricus van’t Hoff, Dutch theoretical chemist, 1904.
Stock Photo #4435-10432, EINSTEIN, Albert (1879-1955). German physicist and mathematician, Nobel Prize in 1921. Albert Einstein represented in his studio just after his great intuition on the theory of the mass and the energy. Drawing.
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EINSTEIN, Albert (1879-1955). German physicist and mathematician, Nobel Prize in 1921. Albert Einstein represented in his stu...
EINSTEIN, Albert (1879-1955). German physicist and mathematician, Nobel Prize in 1921. Albert Einstein represented in his studio just after his great intuition on the theory of the mass and the energy. Drawing.
Stock Photo #1574R-018239, Figures Diana Ong (b. 1940 Chinese-American) Computer graphics
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Figures Diana Ong (b. 1940 Chinese-American) Computer graphics
Stock Photo #1895-10826, Joseph Louis Lagrange, Italian-born mathematician, c 1800.
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Joseph Louis Lagrange, Italian-born mathematician, c 1800.
Stock Photo #4285-6552, PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
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PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
Stock Photo #4048-9526, Albert Einstein taking his oath of citizenship. Also taking swearing allegiance in are Helen Dukas, and Einstein's daughter, Margot. Oct. 1, 1940.
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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.
Stock Photo #1758R-8560, Close-up of an abstract pattern
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Close-up of an abstract pattern
Stock Photo #1758R-9180, Close-up of wires
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Close-up of wires
Stock Photo #1574R-018216, Skyscraper #2 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Skyscraper #2 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #4378-1897, Wormhole in outer space.
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Wormhole in outer space.
Stock Photo #1895-22647, Max Planck, German physicist, c 1910.
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Max Planck, German physicist, c 1910.
Stock Photo #1436R-439856, Yellow willow trees and the futuristic architecture of the Perimeter Institute building in Waterloo Canada
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Yellow willow trees and the futuristic architecture of the Perimeter Institute building in Waterloo Canada
Stock Photo #4285-6076, EXPERIMENTAL COPPER VAPOR LASER.
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EXPERIMENTAL COPPER VAPOR LASER.
Stock Photo #4128R-8149, Mathematical universe, conceptual artwork
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Mathematical universe, conceptual artwork
Stock Photo #4378-1895, Wormhole in outer space.
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Wormhole in outer space.
Stock Photo #4128R-30622, Conceptual representation of a wormhole. A wormhole (or Einstein-Rosen bridge) is a theoretical 'tunnel' through spacetime, allowed by the theory of general relativity. In principle, a wormhole connects two regions in the universe - or two different regions in space as well as time. An object entering the wormhole at one end might emerge in a very different region of the cosmos, an arbitrary distance from the start point and or at a totally different time. As such, wormholes seem to permit faste
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Conceptual representation of a wormhole. A wormhole (or Einstein-Rosen bridge) is a theoretical 'tunnel' through spacetime, a...
Conceptual representation of a wormhole. A wormhole (or Einstein-Rosen bridge) is a theoretical 'tunnel' through spacetime, allowed by the theory of general relativity. In principle, a wormhole connects two regions in the universe - or two different regions in space as well as time. An object entering the wormhole at one end might emerge in a very different region of the cosmos, an arbitrary distance from the start point and or at a totally different time. As such, wormholes seem to permit faste
Stock Photo #1895-8279, (Julius) Robert Oppenheimer, American theoretical physicist, mid 20th century.
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(Julius) Robert Oppenheimer, American theoretical physicist, mid 20th century.
Stock Photo #1895-11161, Sir Nevill Francis Mott, English theoretical physicist, c 1960s.
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Sir Nevill Francis Mott, English theoretical physicist, c 1960s.
Stock Photo #1566-02237, Woman´s face with binary code
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Woman´s face with binary code
Stock Photo #4175-11605, albert Einstein Formula table
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albert Einstein Formula table
Stock Photo #1574R-018211, Snowbird 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Snowbird 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1574R-018218, Pipedream 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Pipedream 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1848-593561, 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
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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
Stock Photo #4266-16685, Russian physicist Vladimir Zakharov by Anonymous /© The Lebedev Physics Institute (FIAN), Moscow/Russia/Portrait
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Russian physicist Vladimir Zakharov by Anonymous /© The Lebedev Physics Institute (FIAN), Moscow/Russia/Portrait
Stock Photo #1574R-018177, Peonies 2002 Diana Ong (b.1940 Chinese-American) Computer graphics
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Peonies 2002 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1895-5621, Albert Einstein, German theoretical physicist, 1935.
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Albert Einstein, German theoretical physicist, 1935.
Stock Photo #1899-73375, Albert Einstein. Portrait of Albert Einstein 1879-1955. Photography c. 1930.
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Albert Einstein. Portrait of Albert Einstein 1879-1955. Photography c. 1930.
Stock Photo #4141-60031, Removal By Ox-Cart Of Cut Timber From Theoretically Protected Trees In Spiny Forest. Ifaty, Southwestern Madagascar.
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Removal By Ox-Cart Of Cut Timber From Theoretically Protected Trees In Spiny Forest. Ifaty, Southwestern Madagascar.
Stock Photo #4325-277, Following in Einstein's Footprints: Portrait of Professor Walter Thirring
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Following in Einstein's Footprints: Portrait of Professor Walter Thirring
Stock Photo #1574R-018178, Design #3 2002 Diana Ong (b.1940 Chinese-American) Computer graphics
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Design #3 2002 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #4285-6075, EXPERIMENTAL COPPER VAPOR LASER.
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EXPERIMENTAL COPPER VAPOR LASER.
Stock Photo #1758R-8353, Close-up of plastic wires
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Close-up of plastic wires
Stock Photo #4286-33790, Non-linear reflection of two fantasy dice
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Non-linear reflection of two fantasy dice
Stock Photo #1758R-8942, Close-up of pastel sticks of chalk
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Close-up of pastel sticks of chalk
Stock Photo #1574R-011836, Abstract #10 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
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Abstract #10 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1574R-018242, Abstract Flowers Diana Ong (b. 1940 Chinese-American) Computer graphics
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Abstract Flowers Diana Ong (b. 1940 Chinese-American) Computer graphics
Stock Photo #1566-882511, Johann Wolfgang von Goethe, 1749 – 1832 German writer, pictorial artist, biologist, theoretical physicist and polymath From The Maclise Portrait Gallery, published 1898
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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
Stock Photo #4128R-31549, Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
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Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which...
Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
Stock Photo #1895-10073, Sadi Carnot, French theoretical physicist, 1806.
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Sadi Carnot, French theoretical physicist, 1806.
Stock Photo #4435-11901, MAXWELL, James Clerk (1831-1879). Scottish theoretical physicist. Oil.
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MAXWELL, James Clerk (1831-1879). Scottish theoretical physicist. Oil.
Stock Photo #1895-10285, Sir Arthur Eddington, English physicist, c 1930.
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Sir Arthur Eddington, English physicist, c 1930.
Stock Photo #4048-9525, 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.
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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.
Stock Photo #1436R-299541, Blue historic Waterloo Central Railway train car with modern Perimeter Institute building
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Blue historic Waterloo Central Railway train car with modern Perimeter Institute building
Stock Photo #1758R-8897, Abstract view of a colored background
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Abstract view of a colored background
Stock Photo #1758R-8751, Abstract view of a blue background
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Abstract view of a blue background
Stock Photo #1758R-8980, Detail of a leaf
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Detail of a leaf
Stock Photo #4409-62380, Friedrich Engels (1820-1895). German social scientist, author, political theorist, philosopher, and father of communist theory, alongside Karl Marx. Colored portrait.
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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.
Stock Photo #1758R-8656, Detail of a leaf
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Detail of a leaf
Stock Photo #1895-9909, Niels Bohr, Danish theoretical physicist, c 1950s.
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Niels Bohr, Danish theoretical physicist, c 1950s.
Stock Photo #1825-1217, Interiors of a bedroom
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Interiors of a bedroom
Stock Photo #1574R-018237, Numbers & Letters Diana Ong (b.1940 Chinese-American) Computer graphics
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Numbers & Letters Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #4378-1796, A black hole in outer space.
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A black hole in outer space.
Stock Photo #4141-60032, Removal By Ox-Cart Of Cut Timber From Theoretically Protected Trees In Spiny Forest. Ifaty, Southwestern Madagascar.
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Removal By Ox-Cart Of Cut Timber From Theoretically Protected Trees In Spiny Forest. Ifaty, Southwestern Madagascar.
Stock Photo #1758R-8964, Design on dried clay surface
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Design on dried clay surface
Stock Photo #1574R-018284, Two Figures Diana Ong (b. 1940 Chinese-American) Private Collection
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Two Figures Diana Ong (b. 1940 Chinese-American) Private Collection
Stock Photo #1436R-439855, Futuristic architecture at the front of the Perimeter Institute building in Waterloo Canada
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Futuristic architecture at the front of the Perimeter Institute building in Waterloo Canada
Stock Photo #1895-10839, Joseph Louis Lagrange, Italian-born mathematician, c 1790.
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Joseph Louis Lagrange, Italian-born mathematician, c 1790.
Stock Photo #1758R-8752, Abstract view of water
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Abstract view of water
Stock Photo #4378-1878, A black hole in outer space.
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A black hole in outer space.
Stock Photo #1758R-8472, Close-up of a circuit board pattern
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Close-up of a circuit board pattern
Stock Photo #4285-6077, EXPERIMENTAL COPPER VAPOR LASER.
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EXPERIMENTAL COPPER VAPOR LASER.
Stock Photo #1895-8510, Sadi Carnot, French theoretical physicist, 1831.
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Sadi Carnot, French theoretical physicist, 1831.
Stock Photo #1758R-8675, Abstract view of water
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Abstract view of water
Stock Photo #1848-593562, 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
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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
Stock Photo #1848-258859, Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.
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Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.
Stock Photo #1758R-8893, Abstract view of water
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Abstract view of water
Stock Photo #824-59305, 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.
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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.
Stock Photo #1895-8270, Max Planck, German theoretical physicist, c 1920.
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Max Planck, German theoretical physicist, c 1920.
Stock Photo #1895-8501, Niels Bohr, Danish theoretical physicist, playing football, c 1910.
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Niels Bohr, Danish theoretical physicist, playing football, c 1910.
Stock Photo #1436R-299540, Yellow green historic Waterloo Central Railway train car with modern Perimeter Institute building
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Yellow green historic Waterloo Central Railway train car with modern Perimeter Institute building
Stock Photo #4378-1911, Wormhole in outer space.
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Wormhole in outer space.
Stock Photo #4048-9527, 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.
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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.
Stock Photo #1758R-8851, Close-up of bubbles
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Close-up of bubbles
Stock Photo #4048-9532, 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.
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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.
Stock Photo #1574R-011823, Abstract Figures In Red 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
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Abstract Figures In Red 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1895-10906, James Clerk Maxwell, Scottish physicist, c 1870s.
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James Clerk Maxwell, Scottish physicist, c 1870s.
Stock Photo #1848-593559, 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
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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
Stock Photo #4128R-28140, Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
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Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which...
Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
Stock Photo #1758R-8405, Abstract view of a colored background
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Abstract view of a colored background
Stock Photo #4435-9788, HAECKEL, Ernest (1834-1919). German biologist. Engraving.
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HAECKEL, Ernest (1834-1919). German biologist. Engraving.
Stock Photo #1574R-018116, Hide & Seek 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
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Hide & Seek 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4285-6555, PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
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PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
Stock Photo #1574R-018104, Crystallized Abstraction (Day) 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
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Crystallized Abstraction (Day) 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1758R-8459, Abstract view of a colored background
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Abstract view of a colored background
Stock Photo #1758R-9165, Close-up of wires
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Close-up of wires
Stock Photo #4435-11089, MAXWELL, James Clerk (1831-1879). Scottish theoretical physicist. Engraving.
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MAXWELL, James Clerk (1831-1879). Scottish theoretical physicist. Engraving.
Stock Photo #4048-9529, 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.
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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.
Stock Photo #4175-4251, Santa Claus as Einstein Santa Claus weihnachtsmaenner santa claus st.claus
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Santa Claus as Einstein Santa Claus weihnachtsmaenner santa claus st.claus
Stock Photo #1574R-011812, New Dawn-A 2000 Diana Ong (b.1940/Chinese-American) Computer graphics
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New Dawn-A 2000 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4048-6032, 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.
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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.
Stock Photo #1574R-018195, Mechanical Figure 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Mechanical Figure 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #4048-7235, Albert Einstein (1879-1955), speaking in Washington, D.C. ca. 1940.
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Albert Einstein (1879-1955), speaking in Washington, D.C. ca. 1940.
Stock Photo #1574R-018202, Black Box 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Black Box 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1758R-8773, Abstract view of water
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Abstract view of water
Stock Photo #1848-589629, 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
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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
Stock Photo #1895-8281, The physicists Paul Dirac, Wolfgang Pauli and Rudolf Peierls, c 1953.
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The physicists Paul Dirac, Wolfgang Pauli and Rudolf Peierls, c 1953.
Stock Photo #4128R-37183, Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional 'string-like' entities on a fa
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Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which...
Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional 'string-like' entities on a fa
Stock Photo #1574R-011857, Black Beauty 2002 Diana Ong (b. 1940/Chinese-American) Computer graphics
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Black Beauty 2002 Diana Ong (b. 1940/Chinese-American) Computer graphics
Stock Photo #1574R-018099, Black Mark #2 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
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Black Mark #2 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1574R-018213, Sunflower Still Life 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Sunflower Still Life 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #4409-113150, José Coll y Vehí (1823-1876). Teórico literario, cervantista, retórico y paremiólogo español. Grabado de "Historia de España Blas Camí", editor, año 1910. Coloreado.
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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.
Stock Photo #1758R-8489, Abstract view of a colored background
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Abstract view of a colored background
Stock Photo #4128R-28130, Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
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Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which...
Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
Stock Photo #1566-056279, Man and binary code
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Man and binary code
Stock Photo #4175-1067, ZAK cartoon Bowling Comic cartoon Comics cartoons
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ZAK cartoon Bowling Comic cartoon Comics cartoons
Stock Photo #4048-9530, Albert Einstein, about five years old, with his younger sister Maja. Ca. 1885.
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Albert Einstein, about five years old, with his younger sister Maja. Ca. 1885.
Stock Photo #1555R-281008, Clamp with egg
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Clamp with egg
Stock Photo #1574R-018201, Garden Variety 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Garden Variety 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1574R-018179, Design #4 2002 Diana Ong (b.1940 Chinese-American) Computer graphics
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Design #4 2002 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1895-9502, Stephen Hawking, English theoretical physicist, 1985.
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Stephen Hawking, English theoretical physicist, 1985.
Stock Photo #4285-6556, PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
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PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
Stock Photo #1758R-9007, Abstract view of water
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Abstract view of water
Stock Photo #4048-9524, Albert Einstein with Israel's Prime Minister, David Ben-Gurion. They talked at Einstein's Princeton home. May 13, 1951
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Albert Einstein with Israel's Prime Minister, David Ben-Gurion. They talked at Einstein's Princeton home. May 13, 1951
Stock Photo #1848-213152, Theoretic education _ preparation at the intermediate testing, training in metal skills
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Theoretic education _ preparation at the intermediate testing, training in metal skills
Stock Photo #4048-7236, Albert Einstein (1879-1955), speaking in Washington, D.C. ca. 1940.
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Albert Einstein (1879-1955), speaking in Washington, D.C. ca. 1940.
Stock Photo #1758R-8706, Textured pattern on a background
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Textured pattern on a background
Stock Photo #4285-6554, PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
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PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
Stock Photo #1895-18562, Rudolf Clausius, German theoretical physicist, 19th century.
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Rudolf Clausius, German theoretical physicist, 19th century.
Stock Photo #1574R-018199, Wired Diana Ong (b.1940/Chinese-American) Computer graphics
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Wired Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4175-11598, albert Einstein universe Space universe Planet planet universe comet meteor
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albert Einstein universe Space universe Planet planet universe comet meteor
Stock Photo #1758R-9287, Close-up of a circuit board pattern
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Close-up of a circuit board pattern
Stock Photo #1758R-8606, Close-up of a blue textured background
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Close-up of a blue textured background
Stock Photo #4048-6468, Charlote Perkins Gilman (1860-1935), American writer established a theoretic foundation for 20th century feminism and the woman's rights movement.
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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.
Stock Photo #1895-10074, Sadi Carnot, French theoretical physicist, 1831.
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Sadi Carnot, French theoretical physicist, 1831.
Stock Photo #1758R-8747, Detail of a leaf
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Detail of a leaf
Stock Photo #1574R-011819, Intrigue 2000 Diana Ong (b.1940/Chinese-American) Computer graphics
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Intrigue 2000 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4048-7233, Albert Einstein (1879-1955), ca. 1935.
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Albert Einstein (1879-1955), ca. 1935.
Stock Photo #1895-19682, James Clerk Maxwell, Scottish physicist, c 1850s.
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James Clerk Maxwell, Scottish physicist, c 1850s.
Stock Photo #1574R-011820, Industrial Women 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
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Industrial Women 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1848-597570, Logs, violins, double bass, plate 21 of the historical and music_theoretical literature Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss
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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
Stock Photo #1848-12218, Theoretic education _ preparation at the intermediate testing, formulary, training in metal skills
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Theoretic education _ preparation at the intermediate testing, formulary, training in metal skills
Stock Photo #4128R-37192, Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional 'string-like' entities on a fa
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Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which...
Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional 'string-like' entities on a fa
Stock Photo #1899-40576, Jeremy Bentham 1748-1832. English philosopher,economist and theoretical jurist. From the book 'Gallery of Portraits' published London 1833.
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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.
Stock Photo #1758R-8860, Close-up of a circuit board pattern
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Close-up of a circuit board pattern
Stock Photo #1574R-018229, Nude Composition 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Nude Composition 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1574R-018215, Snake 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Snake 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #1758R-8586, Abstract view of water
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Abstract view of water
Stock Photo #1758R-9073, Close-up of a circuit board pattern
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Close-up of a circuit board pattern
Stock Photo #1895-10647, Professor Douglas Hartree, English mathematician and physicist, c 1935.
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Professor Douglas Hartree, English mathematician and physicist, c 1935.
Stock Photo #1574R-011877, Split Personality 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Split Personality 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #4266-16701, Russian theoretical physicist, astrophysicist Vitaly L. Ginzburg by Anonymous /© The Lebedev Physics Institute (FIAN), Moscow/2003/Russia/Portrait,Genre
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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
Stock Photo #1758R-8613, Abstract view of a colored background
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Abstract view of a colored background
Stock Photo #1848-593558, Facsimile of plate No. 26, dulcimer and lute, from the historical and music theoretical literature, Syntagma Musicum, musicological writings of Michael Praetorius or Schultheiss
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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
Stock Photo #1848-592899, 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
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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
Stock Photo #4128R-37191, Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional 'string-like' entities on a fa
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Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which...
Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional 'string-like' entities on a fa
Stock Photo #1895-8518, Niels Bohr, Danish theoretical physicist, 1910.
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Niels Bohr, Danish theoretical physicist, 1910.
Stock Photo #1825-3723, Interiors of a bedroom
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Interiors of a bedroom
Stock Photo #1574R-018163, Yellow Path 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
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Yellow Path 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4175-11594, albert Einstein infinity
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albert Einstein infinity
Stock Photo #4128R-28142, Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
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Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which...
Superstrings, conceptual computer artwork. The superstring theory is a Theory of Everything (Grand Unification Theory), which seeks to unite gravitational force with the other fundamental forces (electromagnetism and nuclear forces) that are already described by quantum mechanics at the atomic level. The theory states that fundamental particles such as quarks and electrons are not points of energy or matter, but result instead from the vibrations of one-dimensional \string-like\ entities on a fa
Stock Photo #1895-20714, James Clerk Maxwell, Scottish physicist, c 1870.
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James Clerk Maxwell, Scottish physicist, c 1870.
Stock Photo #1758R-8500, Abstract view of a wall
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Abstract view of a wall
Stock Photo #1574R-018222, Butterfly 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
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Butterfly 2003 Diana Ong (b.1940 Chinese-American) Computer graphics
Stock Photo #4175-11208, albert Einstein Atomic bomb
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albert Einstein Atomic bomb
Stock Photo #4435-11088, MAXWELL, James Clerk (1831-1879). Scottish theoretical physicist. Engraving.
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MAXWELL, James Clerk (1831-1879). Scottish theoretical physicist. Engraving.
Stock Photo #1574R-018155, Reclining Figure 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
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Reclining Figure 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #1848-103721, Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.
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Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.
Stock Photo #1566-1414509, Emmanuel Joseph Sieyès, 1748 - 1836, or Abbé Sieyès, French Roman Catholic abbé, clergyman and political writer.
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Emmanuel Joseph Sieyès, 1748 - 1836, or Abbé Sieyès, French Roman Catholic abbé, clergyman and political writer.
Stock Photo #1825-3755, Interiors of a bedroom
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Interiors of a bedroom
Stock Photo #1848-227028, Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.
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Children sitting at the swimming_pool and learning the theoretical diving, Hamata, Red Sea, Egypt.
Stock Photo #4048-7234, 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.
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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.
Stock Photo #1895-16745, Lecture theatre, University of Leipzig, Germany, 1909.
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Lecture theatre, University of Leipzig, Germany, 1909.
Stock Photo #1895-10286, Sir Arthur Eddington, English physicist, c 1930.
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Sir Arthur Eddington, English physicist, c 1930.
Stock Photo #1574R-018234, Abstract #34 1992 Diana Ong (b.1940 Chinese-American) Computer graphics Private Collection
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Abstract #34 1992 Diana Ong (b.1940 Chinese-American) Computer graphics Private Collection
Stock Photo #1574R-018097, Geo Heads 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
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Geo Heads 2001 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4048-9523, 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.
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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.
Stock Photo #4285-6553, PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
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PORTRAIT OF A MAN WITH US DOLLAR COIN GLASSES AND FINANCIAL NEWSPAPER
Stock Photo #1574R-018120, Time 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
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Time 2002 Diana Ong (b.1940/Chinese-American) Computer graphics
Stock Photo #4048-9531, Madame Joliot-Curie and Albert Einstein. The two Nobel Prize winning physicists talk on the steps of Einstein's home in Princeton. March 1948.
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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.
Stock Photo #4443-12766, THE TRAINING OF A VOLUNTEER
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THE TRAINING OF A VOLUNTEER
Stock Photo #4285-6078, COMPUTER SCREEN WITH A BOARD CIRCUIT DIAGRAM.
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COMPUTER SCREEN WITH A BOARD CIRCUIT DIAGRAM.

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THEORETICAL Stock Photos, THEORETICAL Stock Photography Illustrations