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1722 in science
List of years in science
(
Table
)
…
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
…
Related time period or subjects
…
1719
1720
1721
1722
1723
1724
1725
…
…
1690s
1700s
1710s
1720s
1730s
1740s
1750s
…
…
17th century
18th century
19th century
…
Art
Archaeology
Architecture
Literature
Music
Science
more
The year
1722 in
science
and
technology
involved some significant events.
Contents
1
Chemistry
2
Exploration
3
Mathematics
4
Technology
5
Births
6
Deaths
7
References
Chemistry
René Antoine Ferchault de Réaumur
publishes his work on
metallurgy
,
L'Arte de convertir le fer forge en acier
, which describes how to convert
iron
into
steel
.
Exploration
April 5 -
Jacob Roggeveen
lands on
Easter Island
.
Mathematics
Abraham de Moivre
states
de Moivre's formula
, connecting
complex numbers
and
trigonometry
.
Technology
October - In
clockmaking
,
George Graham
demonstrates that his experiments, begun in December 1721, with
mercurial
compensation of the
pendulum
result in greater accuracy in timekeeping under conditions of variable temperature.
[
1
]
Births
May 11 -
Petrus Camper
,
Dutch
comparative anatomist
(d.
1789
)
Deaths
May 20 -
Sébastien Vaillant
,
French
botanist
(b.
1669
)
References
^
Britten, F. J. (1894).
Former Clock & Watchmakers and their Work
. London: E. & F.N. Spon. pp. 89–97
.
http://books.google.com/books?id=iHwCAAAAIAAJ&pg=PA89&
.