What discoveries were made in the 20th Century

20th century in science

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Science advanced dramatically during the 20th century. There were new and radical developments in the physical, life and human sciences, building on the progress made in the 19th century.[1]

The development of post-Newtonian theories in physics, such as special relativity, general relativity, and quantum mechanics led to the development of nuclear weapons. New models of the structure of the atom led to developments in theories of chemistry and the development of new materials such as nylon and plastics. Advances in biology led to large increases in food production, as well as the elimination of diseases such as polio.

A massive amount of new technologies were developed in the 20th century. Technologies such as electricity, the incandescent light bulb, the automobile and the phonograph, first developed at the end of the 19th century, were perfected and universally deployed. The first airplane flight occurred in 1903, and by the end of the century large airplanes such as the Boeing 777 and Airbus A330 flew thousands of miles in a matter of hours. The development of the television and computers caused massive changes in the dissemination of information.

Contents

1Astronomy and space exploration

2Biology and medicine

2.1Notable diseases

3Chemistry

3.1Quantum chemistry

3.2Molecular biology and biochemistry

3.3Late 20th century

4Earth science

5Engineering and technology

6Mathematics

7Physics

7.1Quantum mechanics

8Social sciences

9References

Astronomy and space exploration

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