Uncertainty Relation, W. Heisenberg
Expanding universe , cosmological model of Lemaitre
8 February 1927 discovery of 1154 Astronomia
11 February 1927 discovery of 1111 Reinmuthia
24 May 1927 discovery of 1117 Reginita
29 August 1927 discovery of 1118 Hanskya
27 October 1927 discovery of 1119 Euboea
1927 Death of Willem Einthoven
1927 Birth of Anne Laura McLaren
1927 Birth of Theodore Harold Maiman
1927 Death of Ernest Henry Starling
1927 Birth of Eugene Newman Parker
1927 Birth of Emilio Picasso
1927 Birth of Gerard K. O'Neill
Physics divided equally between: Arthur Holly Compton for his discovery of the effect named after him and Charles Thomson Rees Wilson for his method of making the paths of electrically charged particles visible by condensation of vapour.
Chemistry to Heinrich Otto Wieland "for his investigations of the constitution of the bile acids and related substances"
Physiology or Medicine to Julius Wagner-Jauregg "for his discovery of the therapeutic value of malaria inoculation in the treatment of dementia paralytica"