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

List of years in science (table)

Contents

CartographyEdit

ChemistryEdit

ExplorationEdit

MathematicsEdit

MedicineEdit

PhysicsEdit

PsychologyEdit

TechnologyEdit

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 #1,394,450.
  8. ^ United States Patent #1,394,519.