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The following dates are approximations. 700 BC: Pythagoras's theorem is discovered by Baudhayana in the Hindu Shulba Sutras in Upanishadic India. [18] However, Indian mathematics, especially North Indian mathematics, generally did not have a tradition of communicating proofs, and it is not fully certain that Baudhayana or Apastamba knew of a proof.
In 1974, The Structure of Scientific Revolutions was ranked as the second most frequently used book in political science courses focused on scope and methods. [44] In particular, Kuhn's theory has been used by political scientists to critique behavioralism , which claims that accurate political statements must be both testable and falsifiable ...
Such discoveries are often a multi-step, multi-person process. Multiple discovery sometimes occurs when multiple research groups discover the same phenomenon at about the same time, and scientific priority is often disputed. The listings below include some of the most significant people and ideas by date of publication or experiment.
Comvik didn’t receive a license to operate until December 1981, two months after the NMT system was launched. [523] [524] 1982: A CD-ROM contains data accessible to, but not writable by, a computer for data storage and music playback. The 1985 Yellow Book standard developed by Sony and Philips adapted the format to hold any form of binary ...
The science behind COVID-19 PCR tests can be traced back to two microbiologists' discovery in the hot springs of Yellowstone National Park. How a 1960s discovery in Yellowstone made millions of ...
1934 – Falsifiability as a criterion for evaluating new hypotheses is popularized by Karl Popper's The Logic of Scientific Discovery. 1937 – The first complete placebo trial is undertaken. The American pharmacologist Harry Gold, studying the effect of xanthines on cardiac pain, alternates them with a placebo and shows them to be ineffective.
February 13 Max Perutz publishes the structure of hemoglobin. [4]John Kendrew publishes the structure of myoglobin. [5]March 5 – British marine biologist Sir Alister Hardy announces his aquatic ape hypothesis, theorising that swimming and diving for food exerted a strong evolutionary effect partly responsible for the divergence in the common descent of humans and other great apes.
In 1960, Hess made his single most important contribution, which is regarded as part of the major advance in geologic science of the 20th century. In a widely circulated report to the Office of Naval Research , he advanced the theory, now generally accepted, that the Earth's crust moved laterally away from long, volcanically active oceanic ridges .