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Science and technology in the world 100 years

Revolution in Physics

In 1900, Planck made a quantum theory. After Einstein in 1905 put forward the concept of light quantum, Bohr in 1912 made the quantum theory of atomic structure, such as the development of the final at the age of 20 are not from people such as the establishment of the Dirac quantum mechanics.

In 1905, Einstein created the special theory of relativity; in 1916, created the general theory of relativity, prompted a profound space, time, material, the intrinsic link between the campaign.

The theory of the universe

After the advent of general relativity, it was the beginning of the new scientific concept of the establishment of the model of the universe.

In 1917, Einstein proposed a limited moral community without the static model of the universe.

1922 to 1924, Friedman proposed uniform expansion of the isotropic dynamic model of the universe.

In 1948, Gamow put the Big Bang theory. This theory of the universe in 1965 found that the radiation background is the proof.

Earth Sciences

In 1912, Wigner proposed continental drift theory.

After age 20 to age 60 and mantle convection, said that the development of sea-floor spreading, in 1968, Le Puy-hung and others established a model of plate tectonics on Earth.

Life Science and Biotechnology

In 1900, Mendel from the first sum derived from biological remains the basic law has finally been recognized.

In 1911, Morgan founded the gene theory.

In 1953, Watson and Crick put forward the genetic molecule DNA double helix model. Marks the birth of modern molecular biology.

In 1978, the advent of test-tube baby.

In 1996, "Dolly" cloned sheep was born.

Nuclear Science and Technology

In 1896, Becquerel discovered radioactivity of natural uranium.

In 1938, the phenomenon of fission of uranium was found.

In 1942, Fermi, under the leadership of the United States built the world's first controlled chain reaction of a device, a declaration of human uses of nuclear energy era.

In 1945, the United States in 1952 have been successfully developed atomic and hydrogen bombs, human beings have begun to release nuclear energy technology.

In 1954, the former Soviet Union built a world's first nuclear power plant, began the human process of the peaceful use of nuclear energy.

Information Science and Technology

In 1947, the first transistor was born.

In 1958, an integrated circuit available.

In 1946, the first computer into operation.

In 1969, the General Electric Company for the first time the program microprocessor.

In 1971, the first micro-computer available.

Aerospace Technology

In 1903, the Wright brothers created the first human history, with a manned aircraft engines.

In 1926, Goddard successfully launched one of the world's first liquid fuel rocket. It laid the foundation of human flight.

In 1957, will be the former Soviet Union's first satellite into orbit.

In 1961, the former Soviet Union successfully launched a manned spacecraft.

In 1969, the United States, "Apollo" manned spacecraft landing on the moon.

In 1971, the former Soviet Union, "I salute the" near-Earth space station into space orbit.

In 1981, the United States for the first time fired several times to and from Earth, "Columbia" space shuttle.

In 1990, the Hubble Space Telescope and X-ray astronomical observation satellite into orbit.

In 1997, the United States National Aeronautics and Space Administration a remote-controlled rover on Mars landing on the surface.