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A golden age of physics began with the simultaneous discovery of the principle of the conservation of energy in the mid-19th century. [7] [8] A golden age of physics was the years 1925 to 1927. [9] The golden age of nonlinear physics was the period from 1950 to 1970, encompassing the Fermi–Pasta–Ulam–Tsingou problem and others. [10]
This timeline lists significant discoveries in physics and the laws of nature, including experimental discoveries, theoretical proposals that were confirmed experimentally, and theories that have significantly influenced current thinking in modern physics. Such discoveries are often a multi-step, multi-person process.
4th century BC – Aristotle describes the composition of matter in terms of the four classical elements, founding Aristotelian physics. [10] 1st century AD – Pliny the Elder in his Natural History records the story of Magnes the shepherd who discovered the magnetic properties of some iron stones. [6]
Physics was transformed by the discoveries of quantum mechanics, relativity, and atomic theory at the beginning of the 20th century. Physics today may be divided loosely into classical physics and modern physics. Many detailed articles on specific topics are available through the Outline of the history of physics.
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For a more detailed timeline of aether theories – e.g. their emergence with the wave theory of light – see a separate article. Also, not all experiments are listed here – repetitions, even with much higher precision than the original, are mentioned only if they influence or challenge the opinions at their time. It was the case with:
The following is a list of astronomers, astrophysicists and other notable people who have made contributions to the field of astronomy.They may have won major prizes or awards, developed or invented widely used techniques or technologies within astronomy, or are directors of major observatories or heads of space-based telescope projects.
2009 – Robot Scientist (also known as Adam) is created, the first machine in history to have discovered new scientific knowledge independently of its human creators. [38] 2012 – Constructor theory, a proposal for a new mode of explanation in fundamental physics, is sketched out by the British physicist David Deutsch. [39]