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1686 in science
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1686 in science
The year 1686 in science and technology involved some significant events.
Astronomy
•
Gottfried Kirch
notices that
Chi Cygni
's brightness varies. ==Biology==
Biology
•
John Ray
begins publication of his
Historia Plantarum
, including the first biological definition of the term
species
; also his edition of
Francis Willughby
's
Historia Piscum
. ==Geology==
Geology
•
Edmund Halley
establishes the relationship between
barometric pressure
and height above sea level. ==Meteorology==
Meteorology
• Edmund Halley presents a systematic study of the
trade wind
s and
monsoon
s and identifies solar heating as the cause of
atmospheric
motions. ==Physics==
Physics
•
Isaac Newton
uses a fixed length
pendulum
with weights of varying composition to test the weak
equivalence principle
to 1 part in 1000. ==Births==
Births
• February 10 –
Jan Frederik Gronovius
,
Dutch
botanist
(died
1762
) • May 24 –
Gabriel Fahrenheit
,
physicist
and
inventor
(died
1736
) • July 6 –
Antoine de Jussieu
, French
naturalist
(died
1758
) • October (
possible date
) –
John Machin
, English
mathematician
(died
1751
) ==Deaths==
Deaths
• May 11 –
Otto von Guericke
, German
physicist
(born
1602
) • November 25 (
NS
December 5) –
Nicolas Steno
,
Danish
pioneer
geologist
and bishop (born
1638
) ==References==
Source: Wikipedia ↗
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