Category
page 11940 in science
1940 in science
overview of natural science-related events during the year of 1940
one-electron universe
Physics postulate describing all electrons/positrons as one time-independent entity
solar eclipse of October 1, 1940
20th-century total solar eclipse
solar eclipse of April 7, 1940
20th-century annular solar eclipse
experimental testing of time dilation
tests confirming special relativity