#### 1. Torricelli's Barometer: Measuring Atmospheric Pressure for 400 Years

Evangelista Torricelli was an Italian physicist and mathematician who is best remembered for his invention of the barometer. His invention, which he completed in 1643, was the first to measure atmospheric pressure and was a major breakthrough in the field of meteorology. Torricelli's barometer was based on the principle of hydrostatic equilibrium, which states that the pressure of a fluid is equal in all directions. His invention was so revolutionary that it is still used today to measure atmospheric pressure and predict weather patterns.

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#### 2. Torricelli's Unknown Years

In the nine-year period between 1632 and 1641, very little is known about Evangelista Torricelli's activities. The only records that exist are a few letters, leaving us with a limited understanding of what he was doing during this time. It is possible that he was working on his groundbreaking research in mathematics and physics, which would later lead to the invention of the barometer and the discovery of the principle of the vacuum.

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#### 3. Italian Physicist Torricelli Passes Away

On 25 October 1647, Evangelista Torricelli, a renowned Italian physicist and mathematician, tragically passed away in Florence after a brief battle with typhoid fever. His death marked the end of a life filled with remarkable accomplishments, such as inventing the barometer and discovering the law of the infinitesimal calculus. Torricelli's legacy lives on to this day, and his contributions to the scientific world will never be forgotten.

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#### 4. Asteroid 7437: Torricelli, Physicist and Mathematician

The Italian physicist and mathematician Evangelista Torricelli was so influential that an asteroid was named after him - asteroid 7437 Torricelli. This celestial body is located in the asteroid belt between Mars and Jupiter, and is a testament to the lasting legacy of Torricelli's work in the fields of physics and mathematics.

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#### 5. Torricelli's Barometer: A Revolution in Pressure Measurement

Evangelista Torricelli is best known for his invention of the mercury barometer, which was created to solve a practical problem. This invention revolutionized the way atmospheric pressure was measured and is still used today. Torricelli's barometer consists of a glass tube filled with mercury and sealed at one end. When the tube is inverted and placed in a dish of mercury, the atmospheric pressure causes the mercury to rise in the tube, creating a vacuum at the sealed end. This invention was a major breakthrough in the field of physics and has been used to measure atmospheric pressure ever since.

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#### 6. Torricelli: Speed of Fluid Tied to Height

Evangelista Torricelli was a renowned Italian physicist and mathematician who made a significant contribution to the field of fluid dynamics. He is best known for his discovery of Torricelli's Law, which states that the speed of a fluid flowing out of an opening is proportional to the square root of the height of the fluid above the opening. This law was later shown to be a particular case of Bernoulli's principle, which states that the pressure of a fluid decreases as its speed increases. Torricelli's Law is still used today in many engineering applications.

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#### 7. Torricelli: First to Propose Scientific Explanation for Wind

Evangelista Torricelli, an Italian physicist and mathematician, was the first to provide a scientific explanation for the cause of wind. He proposed that wind is caused by differences in air pressure, which is created by the uneven heating of the Earth's surface by the Sun. This groundbreaking discovery revolutionized the way we understand the atmosphere and its effects on the environment.

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#### 8. Torricelli's Trumpet: A Geometric Gem

Evangelista Torricelli is renowned for his discovery of the Torricelli's trumpet, a geometric figure with a single curved side and a single straight side. This figure is formed by rotating a semicircle around its diameter, and it has been studied extensively by mathematicians and physicists. Torricelli's trumpet has been used to study the properties of fluids, and it has been used to explain the behavior of sound waves. It has also been used to study the properties of light, and it has been used to explain the behavior of light waves.

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#### 9. The Father of Calculus

Evangelista Torricelli was a true pioneer in the field of mathematics, particularly in the area of infinite series. He was the first to recognize the importance of the concept of a limit of a sequence, and he developed a method for calculating the sum of an infinite series. His work laid the foundation for the development of calculus and other branches of mathematics. He is remembered today as one of the most influential mathematicians of the 17th century.

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#### 10. Italian Navy Honors Torricelli with Submarine Names

The Italian Navy has honored the legacy of the renowned scientist Evangelista Torricelli by naming several of its submarines after him. Torricelli, an Italian physicist and mathematician, is best known for his invention of the barometer and his contributions to the fields of hydrostatics and infinitesimal calculus. His work in these areas has had a lasting impact on the development of modern science and technology. The submarines named after him serve as a reminder of his remarkable achievements and his lasting legacy.

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