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 1721 in science - Definition 

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
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