1816 in science

The year 1816 in science and technology involved some significant events, listed below.

Botany

René Laennec invents the stethoscope.
Caleb Parry publishes An Experimental Inquiry into the Nature, Cause and Varieties of the Arterial Pulse, describing the mechanisms for the pulse.

Johann Fischer von Waldheim publishes Essai sur la Turquoise et sur la Calaite in Moscow, the first scientific treatise on the mineral turquoise.

January 9 – Sir Humphry Davy's Davy lamp is first tested underground as a coal mining safety lamp at Hebburn Colliery in north east England.
The Spider Bridge at Falls of Schuylkill, a temporary iron-wire footbridge erected across the Schuylkill River, north of Philadelphia, Pennsylvania, is the first wire-cable suspension bridge in history.
Johann Nepomuk Maelzel begins production of the metronome with a scale.
Rev. Robert Stirling obtains a patent in the United Kingdom for the Stirling hot air engine.
English inventor Francis Ronalds demonstrates the practicability of the electric telegraph but it is rejected as "wholly unnecessary" at this time.approx. date – Simeon North in New England produces a practicable milling machine for working metal.

January 2 – Anastasie Fătu, Moldavian and Romanian physician and naturalist
July 7 – Rudolf Wolf, Swiss astronomer
July 20 – Sir William Bowman, 1st Baronet, English ophthalmologist, histologist and anatomist
December 13 – Werner Siemens, German electrical engineer