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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.
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.
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.
1960 – B. F. Skinner's demonstrations of operant conditioning. 1961 – Francis Crick, Sydney Brenner, Leslie Barnett and R.J. Watts-Tobin prove the triplet nature of the genetic code. 1961 – Marshall W. Nirenberg and J. Heinrich Matthaei deciphered the first codon of the genetic code.
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 ...
1960 – John Kendrew described the structure of myoglobin, the oxygen-carrying protein in muscle. 1960 – Four separate researchers (S. Weiss, J. Hurwitz, Audrey Stevens Niyogi and J. Bonner) discovered bacterial RNA polymerase, which polymerizes nucleotides under the direction of DNA. 1960 – Robert Woodward synthesized chlorophyll.
1967 — John Wheeler introduces the term "black hole" in his lecture to the American Association for the Advancement of Science [1] 1968 — Brandon Carter uses Hamilton–Jacobi theory to derive first-order equations of motion for a charged particle moving in the external fields of a Kerr–Newman black hole
200s: 3rd century in science; 300s: 4th century in science; 400s: 5th century in science; 500s: 6th century in science; 600s: 7th century in science; 700s: 8th century in science; 800s: 9th century in science; 900s: 10th century in science; 1000s: 11th century in science; 1100s: 12th century in science; 1200s: 13th century in science; 1300s ...