1721 in science
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The year 1721 in science and technology included many events, some of which are listed here.
See also: 1720 in science, other events of 1721, 1722 in science, list of years in science
Technology
- George Graham improves the pendulum clock's accuracy to 1 second per day by compensating for changes in the pendulum's length due to temperature variations
Births
Deaths
- September 11 - Rudolf Jakob Camerarius, German botanist (born 1665)