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c. 50 – Aulus Cornelius Celsus died, leaving De Medicina, a medical encyclopedia; Book 3 covers mental diseases.The term insania, insanity, was first used by him. The methods of treatment included bleeding, frightening the patient, emetics, enemas, total darkness, and decoctions of poppy or henbane, and pleasant ones such as music therapy, travel, sport, reading aloud, and massage.
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.
Modern physics is a branch of physics that developed in the early 20th century and onward or branches greatly influenced by early 20th century physics. Notable branches of modern physics include quantum mechanics, special relativity, and general relativity. Classical physics is typically concerned with everyday conditions: speeds are much lower ...
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. Detailed articles on specific topics are available through the Outline of the history of physics.
Many cultures throughout history have speculated on the nature of the mind, heart, soul, spirit, brain, etc. For instance, in Ancient Egypt, the Edwin Smith Papyrus contains an early description of the brain, and some speculations on its functions (described in a medical/surgical context) and the descriptions could be related to Imhotep who was the first Egyptian physician who anatomized and ...
This timeline includes developments in subfields of condensed matter physics such as theoretical crystallography, solid-state physics, soft matter physics, mesoscopic physics, material physics, low-temperature physics, microscopic theories of magnetism in matter and optical properties of matter and metamaterials.
c.320 BC – Aristotle categorizes and subdivides knowledge into physics, poetry, zoology, logic, rhetoric, politics, and biology. His Posterior Analytics defended the ideal of science as originating from known axioms. Aristotle believed that the world was real and that we can learn the truth by experience.
This timeline describes the major developments, both experimental and theoretical, of: Einstein’s special theory of relativity (SR), its predecessors like the theories of luminiferous aether, its early competitors, i.e.: Ritz’s ballistic theory of light,