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Film Review: Absolute Zero
How did early concepts of cold change throughout the history?
In 17th century Cornelius turned summer into winter at kings room with possibly the first air conditioning. Next Boyle used scientific process to study cold with a variety of experiments while it was believed cold was a substance. Boyle concluded heat was a form of motion, the cooler a substance is the less movement. Once Thermometers were invented by Fahrenheit, experiments made progress and the concept of absolute zero came to be. However, the caloric theory from Antoine states that heat was a fluid and was self repulsive. Rumford used canons to disprove that theory by showing heat was generated by movement. Later on, Michael Faraday heated chlorine in a sealed tube and showed gas turning into liquid vice versa depending on pressure and produced refrigeration. Frederick Tutor then sold natural ice internationally, until the steam engine was understood and commercial refrigeration was invented. Joule came pu with the idea that heat was turning into mechanical work, not producing it. He measured exchange rate between motion and heat of energy which later turned into the first law of thermodynamics. …show more content…
What was the contribution of Joule in understanding the laws of Thermodynamics?
Heat is thermal while work is mechanical. Heat is microscopic movement of particles colliding, while work is macroscopic movement in the form of pushes and pulls. Joule made an experiment in his brewery that measured the exchange rate between movement and heat. This led him to believe that heat cannot be created or destroyed, but is found and changed into different forms. He later found out he was measuring exchange of energy and his theory became the first law of
Film Review: Absolute Zero
How did early concepts of cold change throughout the history?
In 17th century Cornelius turned summer into winter at kings room with possibly the first air conditioning. Next Boyle used scientific process to study cold with a variety of experiments while it was believed cold was a substance. Boyle concluded heat was a form of motion, the cooler a substance is the less movement. Once Thermometers were invented by Fahrenheit, experiments made progress and the concept of absolute zero came to be. However, the caloric theory from Antoine states that heat was a fluid and was self repulsive. Rumford used canons to disprove that theory by showing heat was generated by movement. Later on, Michael Faraday heated chlorine in a sealed tube and showed gas turning into liquid vice versa depending on pressure and produced refrigeration. Frederick Tutor then sold natural ice internationally, until the steam engine was understood and commercial refrigeration was invented. Joule came pu with the idea that heat was turning into mechanical work, not producing it. He measured exchange rate between motion and heat of energy which later turned into the first law of thermodynamics. …show more content…
What was the contribution of Joule in understanding the laws of Thermodynamics?
Heat is thermal while work is mechanical. Heat is microscopic movement of particles colliding, while work is macroscopic movement in the form of pushes and pulls. Joule made an experiment in his brewery that measured the exchange rate between movement and heat. This led him to believe that heat cannot be created or destroyed, but is found and changed into different forms. He later found out he was measuring exchange of energy and his theory became the first law of