Fact File about the Invention of the Barometer: Invention: Barometer *** Date of Invention: 1643 *** Name of Inventor: Evangelista Torricelli *** Lifespan of Inventor: 1608 - 1647 *** Nationality of Inventor: Italian *** Historical Period: Renaissance (1350 to 1700) *** Country of Origin: Italy *** Facts about the Inventor and invention of the Barometer ***
Fact 1: Who invented the Barometer? The mercury Barometer was invented by Evangelista Torricelli in 1643 during the Renaissance era of inventions (1350 to 1700) which was a foremost addition to advancements made in the area of Science.
Fact 2: Who invented the Barometer? The device was initially referred to
as "Torricelli's tube" and the word 'Barometer' was probably was coined and
certainly popularized by English scientist Robert Boyle (1627-1691). The word
'Barometer' derives from Greek word 'baros' meaning "weight" and the Latin word
'metrum' meaning "measure".
Fact 3: Who invented the Barometer? Prior to the invention of the
Barometer in 1643, weather vanes were used for observing and predicting the
weather. A weather vane was a mechanical device consisting of plate metal shaped
like an arrow or a rooster, with letters that indicated the points of the
compass, which was mounted on the roof of a house or church spire which rotated
freely to show the direction of the wind.
Fact 4: Who invented the Barometer? The only other indication of weather
conditions was by referring to an almanac, a yearly handbook of astronomical
information and weather predictions introduced in the 16th century, which gave
long range, seasonal forecasts for different areas of the country.
Fact 5: Who invented the Barometer? The invention of the mercury
barometer measured changes in air pressure to predict short-term changes in the
weather. It was important for people such as farmers to be prepared for short
term weather changes, so that tasks could be completed or changed and livestock
cared for. Such knowledge also kept people safe from safe from hazardous
Fact 6: Who invented the Barometer? The inventor of the Barometer, Evangelista Torricelli, was born on 15 October 1608 in Rome, Papal States and died on 25 October 1647.
Fact 7: Who invented the Barometer? The early years of Evangelista Torricelli were spent in Rome, Papal States where he was raised by his family.
His father was Gaspare Torricelli and his mother was Caterina Angetti. Evangelista Torricelli was
well educated and studied science and math under the Benedictine monk Benedetto Castelli at the Collegio della Sapienza of Rome.
Fact 8: Who invented the Barometer? Following his education he worked as
a secretary and assistant to the great scientist, astronomer and physicist
Galileo Galilei for just a few short months before the great man's death.
Evangelista Torricelli then went on to assume the position of mathematician,
philosopher and instrument maker at the court of Grand Duke Ferdinando II of
Tuscany, where he remained all his life.
Fact 9: Who invented the Barometer? Evangelista Torricelli conducted
various scientific experiments and became particularly interested in the science
of meteorology that involved the atmospheric conditions and weather of an area.
Fact 10: Who invented the Barometer? The invention of the barometer began
when Evangelista Torricelli began investigating the working limits of a suction
pump and set up experiments to investigate the effects of pressure in a vacuum.
Fact 11: Who invented the Barometer? The Renaissance era was a period of
great enlightenment when scientists sought to answer questions such as "Does the
air have weight?". Most people of the time believed that air was weightless.
Evangelista Torricelli devised an experiment which actually proved air had
weight and an instrument to measure air pressure.
Fact 12: Who invented the Barometer? Evangelista Torricelli first
experiment involved water. He set up a a 35 foot tube water experiment, that
literally protruded out of the roof of his house, and noticed that air pressure
changes, related to changes in the weather, caused the water level in the tube
to rise and fall.
Fact 13: Who invented the Barometer? He placed a dummy on top of this
giant water column, and his neighbors began to see this dummy moving up and down
with the changes in the weather. Townsfolk believed he was involved in some sort
of sorcery and Evangelista Torricelli quickly realized he needed to be much more
discreet in his experiments. Evangelista Torricelli was well aware that his
mentor Galileo had been convicted of heresy by the Roman Catholic church - the
Renaissance era was a dangerous time to be a scientist.
Fact 14: Who invented the Barometer? He changed his experiment deducting
that mercury was heavier than water and would require a tube of only 32 inches
as opposed his 35 foot water tube. Torricelli discovered that mercury rises and
falls when atmospheric pressure changes. The mercury typically hovered between
28 and 30 inches high in the tube, with variations in the height of the mercury
based on the air pressure.
Fact 15: Who invented the Barometer? Evangelista Torricelli built the
first mercury barometer in 1644. The barometer consisted of a liquid mercury
filled tube that was closed on one end with a mercury reservoir at the other
end. As the air pressure surrounding the barometer increased, the pressure
forced the mercury to move up the tube. As the air pressure decreased, the
mercury moved back down the tube. On the side of the tube, there were marks that
corresponded to measurements in inches that were used to quantify changes in
Fact 16: Who invented the Barometer? Evangelista Torricelli, the inventor
of the barometer, died of typhus on 25 October 1647 and was buried at the
Basilica of San Lorenzo. The torr, a unit of pressure used in vacuum
measurements is named for Evangelista Torricelli, the inventor of the barometer.
Fact 17 - The Aneroid Barometer: In 1843, Lucien Vidie modified
Evangelista Torricelli’s barometer by inventing the aneroid barometer that did
not need mercury or fluids. The aneroid barometer consists of a small, flexible
metal box called an aneroid cell which is made from an alloy of beryllium and