Quien fue el inventor del barometro?
¿Quién fue el inventor del barómetro?
En 1644, Evangelista Torricelli inventó el barómetro de mercurio, instrumento que permitió medir los cambios de presión atmosférica.
¿Cómo se origino el barómetro?
En 1643, Torricelli utilizó el mercurio haciéndolo ascender en un tubo cerrado, creando vacío en la parte superior, empujado por el peso del aire de la atmósfera. Demostró que el aire tiene peso, e inventó el barómetro.
¿Qué invento hizo Torricelli?
Barometer
Evangelista Torricelli/Inventions
¿Qué hizo Torricelli y que explica con su experimento?
Uno de los experimentos científicos más famosos de la historia es el que llevó a cabo en 1643 el físico italiano Evangelista Torricelli, gracias al cual desentrañó como actuaba el aire, ejerciendo una presión, y diseñó el instrumento para medirla: el barómetro de mercurio, llamado en su honor, de Torricelli.
How did Torricelli invent the barometer?
The first mercury filled glass tube was generally accepted to have been invented in 1643 by Torricelli, which became known as Torricelli’s mercury barometer. In this he produced a vacuum by filling a glass tube with mercury, inverting it and then submerging the open end in a vessel of mercury.
Why did Torricelli invented the barometer?
When the mercury level lowered, the weather turned poor. When the mercury rose, the weather became fair. This experiment created the first barometer. In 1646 the French scientist Blaise Pascal used Torricelli’s barometer to test his theory that air has different weight at different heights.
How does a Torricelli barometer work?
(The first barometer of this type was devised by Italian physicist and mathematician Evangelista Torricelli in 1643.) The barometer works by balancing the weight of mercury in the glass tube against the atmospheric pressure, much like a set of scales.
Why was the barometer invented?
Evangelista Torricelli is the inventor of the barometer, which is a device that can measure air pressure. He made the first barometer in Florence, Italy, in 1644. He realized that if air had vertical weight, the pressure would be lower at higher altitudes.
Why did Torricelli replace water with mercury?
Torricelli reasoned that it would have a natural pressure of its own. He then reasoned that his mercury tube was long enough that the weight of the mercury was greater than the atmospheric pressure, so when he upended it the mercury could no longer be held in and would fall, even if there was no air to replace it.
How does Torricelli measure atmospheric pressure?
Procedure. The experiment uses a simple barometer to measure the pressure of air, filling it with mercury up until 75% of the tube. Any air bubbles in the tube must be removed by inverting several times. After that, a clean mercury is filled once again until the tube is completely full.
What is Torricelli barometer?
What is the purpose of barometer?
A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around the Earth. That air has a weight and presses against everything it touches as gravity pulls it to Earth. Barometers measure this pressure.