THOMAS EDISON (1847-1931).
THOMAS ALVA EDISON (1847-1931).
THOMAS A. EDISON (1847-1931).
EDISON & STEINMETZ, 1922.
BENJAMIN FRANKLIN (1706-1790).
AMERICAN SCIENTISTS.
NIKOLA TESLA (1856-1943).
JAMES P. JOULE (1818-1889).
ALBERT EINSTEIN (1879-1955).
THOMAS A. EDISON, 1879.
LEE DE FOREST (1873-1961).
MICHAEL IDVORSKY PUPIN
THOMAS ALVA EDISON
JOHN WORRALL KEELY, c1895.
ELIE METCHNIKOFF (1845-1916).
ANTOINE LAURENT LAVOISIER
SAMUEL PIERPONT LANGLE
SAMUEL PIERPONT LANGLEY
ROBERT ANDREWS MILLIKA
Thomas Alva Edison (1847-1931), American Inventor, half-length seated Portrait, Louis Bachrach, Bachrach Studios, 1922
Thomas Alva Edison (1847-1931), American Inventor, half-length Portrait, Louis Bachrach, Bachrach Studios, 1922
Thomas A. Edison with Phonograph, Engraving, circa 1888
SIR FRANCIS GALTON
ANTOINE LAVOISIER.
JEAN LE ROND D'ALEMBERT
JOHN STUART MILL
SIR CHARLES WHEATSTONE
BLAISE PASCAL (1623-1662)
CARL GUSTAV JUNG (1875-1961).
SIR CHARLES LYELL
THOMAS H. HUXLEY
RALPH WALDO EMERSON
LEO TOLSTOY (1828-1910).
WILLIAM DEAN HOWELLS
EDISON WITH HIS FAMILY.
NIGERIA: CHEMISTRY STUDENT.
ALBERT SCHWEITZER
CHARLES DURYEA (1862-1938).
MARQUIS DE CONDORCET
PLUTARCH (c46-c120).
BOOKER T. WASHINGTON
ALEXANDER GRAHAM BELL/n(1847-1922).
JAMES NAISMITH (1861-1939).
WRIGHT BROTHERS GLIDER.
Thomas Alva Edison (1847-1931)
WILLIAM McDOUGAL
ELI WHITNEY (1765-1825).
MAX PLANCK (1858-1947)
THOMAS YOUNG (1773-1829).
ALBERT BUSHNELL HART
MARIE CURIE (1867-1934).
SIR ALEXANDER FLEMING
WRIGHT BROTHERS
ERNST HEINRICH HAECKE
BLAISE PASCAL (1623-1662).
GALILEO GALILEI
Robert Bunsen, Gustav Kirchoff and Henry Roscoe
THEODOSIUS DOBZHANSKY
Seth Chandler, US astronomer
OLIVER W. HOLMES (1809-1894).
WILLIAM JAMES (1842-1910)
THOMAS H. HUXLEY (1825-1895).
JOSEPH HENRY (1797-1878).
WILHELM CONRAD ROENTGE
ALBERT ABRAHAM MICHELSON
3RD BARON RAYLEIGH
DAVID HUME (1711-1776).
BADEN POWELL (1796-1860).
SIR JAMES MATTHEW BARRIE
GEORGE BERNARD SHAW
JOHN BURROUGHS (1837-1921).
JAMES GLAISHER (1809-1903).
Charles Darwin, British naturalist
Alchemist, historical artwork
Alessandro Volta, Italian physicist
Albert Gunther, German-British zoologist
Thomas Edison, US inventor
ISAAC NEWTON (1643-1727).
LUTHER BURBANK (1849-1926).
DAVISSON & GERMER, c1927.
Thomas A. Edison, inventor
ALFRED RUSSEL WALLAC
BENJAMIN THOMPSON
PAUL DIRAC (1902-1984).
WERNER KARL HEISENBERG
ALEXANDER VON HUMBOLDT
SIR JOHN F.W. HERSCHEL
JEAN HENRI FABRE (1823-1915).
JOHN STEVENS HENSLOW
MICHAEL FARADAY
JAMES CLERK MAXWELL
JOHN TYNDALL (1820-1893).
THOMAS EDISON (1847-1931)
HUGH PRICE HUGHES (1847-1902).
Samuel Milner, British physicist
Davisson and Germer, US physicists
James Joule, British physicist
SIR ISAAC NEWTON (1642-1727).
JAMES CURLEY (1796-1889).
ROBERT KOCH (1843-1910)
SIR ISAAC NEWTON (1643-1727).
JONAS EDWARD SALK
Alexander von Humboldt (1769-1859), German Naturalist and Explorer and Major Figure in the Classical Period of Physical Geography and Biogeography, Seated Portrait, Steel Engraving, Portrait Gallery of Eminent Men and Women of Europe and America by Evert
JAMES NASMYTH (1808-1890).