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The year 1920 in science and technology consisted of many events, some of which are included below.
1 Biology
2 Meteorology
- Milutin Milankovic proposes that long term climatic cycles may be due to changes in the eccentricity of the Earth's orbit and changes in the Earth's obliquity.
3 Physics
4 Technology
- The first transatlantic two-way radio broadcast is made.
- First domestic radio sets come to stores in USA – Westinghouse radio costs $10
5 Nobel Prizes
6 Births
- January 2January 2 is the 2nd day of the year in the Gregorian Calendar. There are 363 days remaining (364 in leap years). Events 366 Alamanni cross frozen Rhine in large numbers, invading Roman Empire. 1492 Reconquista: Granada, the last Moorish stronghold in Spa - Isaac Asimov (d. 1992), author.
- February 7 - An Wang (d. 1990), computer designer.
7 Deaths
1920
Years in science
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