1921 in science

The year 1921 in science and technology involved some significant events, listed below.

List of years in science (table)

CartographyEdit

ChemistryEdit

ExplorationEdit

MathematicsEdit

MedicineEdit

PhysicsEdit

PsychologyEdit

TechnologyEdit

  • October 25 – Hugo A. F. Abt is granted a patent for his design of bascule bridge.[7]
  • The vibraphone in its original form is invented in the United States.

InstitutionsEdit

AwardsEdit

BirthsEdit

DeathsEdit

ReferencesEdit

  1. ^ "The Collisions of Particles with Hydrogen Nuclei" (PDF). Philosophical Magazine. 42 (252): 923–940. 1921.
  2. ^ Crilly, Tony (2007). 50 Mathematical Ideas You Really Need to Know. London: Quercus. p. 57. ISBN 978-1-84724-008-8.
  3. ^ Weyl, Hermann (1935). "Emmy Noether". Scripta Mathematica. 3: 201–220.
  4. ^ Carere, Suzanne (2007-07-25). "Age-old children's disease back in force". thestar.com. Toronto. Archived from the original on 2008-05-17. Retrieved 2012-01-26.
  5. ^ Conis, Elena (2006-07-24). "Fortified foods took out rickets". Los Angeles Times. Retrieved 2012-01-26.
  6. ^ McClean, Franklin C.; Budy, Ann M. (1963). "Vitamin A, Vitamin D, Cartilage, Bones, and Teeth". In Harris, Robert S. (ed.). Vitamins and Hormones. 21. New York; London: Academic Press. pp. 51–52.
  7. ^ United States Patent #1,394,519.