The 1900s Science and Technology: Chronology

views updated

The 1900s Science and Technology: Chronology

1900:      Thomas Alva Edison invents the nickel-based alkaline storage battery.

1900:      German scientists invent the modern pendulum seismograph to detect earthquakes.

1900:      Sigmund Freud's On the Interpretation of Dreams is published.

1900:     July 2 The first Zeppelin dirigible is flown in Germany.

1900:     December 14 Max Planck, a German physicist, announces the basis of quantum theory: Light rays are emitted in discrete amounts called quanta.

1901:      General Electric establishes the first corporate research laboratory.

1901:      Andrew Carnegie announces his intention to donate $10 million to promote scientific research.

1901:      Brothers Orville and Wilbur Wright begin glider flights to study the aerodynamics of flight.

1901:      Hugo de Vries, a Dutch biologist, publishes his theory of genetic mutation.

1901:     December 12 Guglielmo Marconi receives the first transatlantic radio transmission.

1902:      The lawn mower and vacuum cleaner are invented in England.

1902:      Arthur Korn, a German inventor, develops the photofacsimile machine, which transmits photographs by telegraph.

1902:      Ivan Pavlov, a Russian physiologist and psychologist, discovers conditioned reflexes.

1902:      Richard Zsigmondy, a German chemist, invents the ultramicroscope.

1902:      British physicists Ernest Rutherford and Frederick Soddy explain radioactivity as the disintegration of atomic structures.

1903:      Reginald Fessenden discovers the electrolytic radio detector, a machine capable of receiving the human voice.

1903:      The safety razor is invented

1903:      Edison perfects a technique for producing master record molds, called electroplating.

1903:      Bertrand Russell, an English philosopher, publishes The Principles of Mathematics, which attempts to reduce pure mathematics to a limited number of concepts.

1903:     December 17 The Wright brothers successfully take flight at Kitty Hawk, North Carolina.

1904:      The Panama Canal construction project begins.

1904:      John Fleming invents the diode vacuum tube, which converts an alternating electric current into a one-way signal.

1904:      Charles Perrine discovers the sixth moon of Jupiter.

1904:      Phonograph records replace Edison's wax cylinders in sound recording.

1904:      The United States Engineering Society is founded.

1905:      Albert Einstein publishes several important papers on the theory of relativity, Brownian motion, and the photoelectric effect.

1905:      German physicist Philipp Lenard is awarded the Nobel Prize in physics for his discovery of cathode rays.

1905:      The German Navy launches the first U-boat submarine.

1905:      Ernest Starling, an English physiologist, coins the term "hormone" to identify chemical messengers produced by the endocrine glands.

1906:      Thaddeus Cahill invents telharmonium, a type of telephonic organ.

1906:      The Nobel Prize in physics is awarded to scientist J.J. Thomson for his discovery of the electron.

1906:     December 24 The first radio broadcast originates from Brant Rock, Massachusetts.

1906:     December 31 Lee De Forest invents the triode vacuum tube, which made possible the transmission of human voice, music, and other broadcast signals via wireless telephony.

1907:      The first helicopter flight takes place in France.

1907:      Albert Michelson becomes the first American Nobel laureate when he wins the Nobel Prize in physics for measuring the speed of light.

1908:      The electric razor is invented.

1908:      George Ellery Hale discovers magnetic fields in sunspots.

1908:      The Ford Motor Company introduces the Model T, or "Tin Lizzie," the most popular of the early automobiles.

1908:      Dutch physicist Heike Kamerlingh Onnes produces liquid helium.

1908:      The Holt Company introduces the first tractor with moving treads.

1908:     December 21 Wilbur Wright flies seventy-seven miles in two hours and twenty minutes, winning the Michelin Cup in France.

1909:      The terms gene, genotype, and phenotype are introduced by biologist Wilhelm Johannsen.

1909:     April 6 U.S. Navy commander Robert Peary reaches the North Pole.

1909:     September Psychoanalyst Sigmund Freud makes his only visit to the United States, to lecture at Clark University in Worcester, Massachusetts.

1909:     November 24 Celebrations in England and the United States mark the fiftieth anniversary of the publication of Charles Darwin's On the Origins of Species and the centennial of Darwin's birth.

About this article

The 1900s Science and Technology: Chronology

Updated About content Print Article


The 1900s Science and Technology: Chronology