1702 in science
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The year 1702 in science and technology involved some significant events.
Astronomy
- April 20 – Comet of 1702 (C/1702 H1): The 10th-closest comet approach in history, it missed Earth by a distance of 0.0437 AU (6,537,000 km).<ref>Template:Cite web</ref>
- May 5 – Globular cluster Messier 5 (M5, NGC 5904) is discovered by Gottfried Kirch and his wife Maria Margarethe.
- David Gregory publishes the first textbook, Astronomiae physicae et geometricae elementa, the first astronomy textbook based on Isaac Newton's principles of motions and theory of gravitation.<ref>Template:Cite book</ref><ref>Template:Cite web</ref>
Technology
- A fountain pen is developed by French instrument-maker Nicholas Bion.<ref>Template:Cite web</ref><ref>Template:Cite web</ref>
- Pierre Varignon applies calculus to spring-driven clocks.
Births
- November 5 – Edward Stone, English polymath (died 1768)<ref>Template:Cite ODNB</ref>
- Undated
- Giuseppa Barbapiccola, Italian natural philosopher, poet and translator (died 1740)
- Benjamin Stillingfleet, English botanist (died 1771)
Deaths
- April – Clopton Havers, English physician who did pioneering research on the microstructure of bone (born 1657)
- December 12 – Olof Rudbeck, Swedish physiologist who discovered that the thoracic duct is connected to the intestinal lymphatics (born 1630)