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At the beginning, he studied in Paris under the supervision of Professor Henri Victor Regnault. Later, he travelled to Heidelberg, where he continued his research, this time study- ing the solutions under [...] element until well into the 18th century when several chemists started almost simultaneously their study of pneumat- ics and were able to show that air was a combi- nation of several gases. Until the end [...] periodic table of elements, which is still used today. Mendeleev devoted a great part of his life to the study of solutions, catalysis, and petroleum. He also wrote many works, including Principles of Chemistry

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• Mendeleev and the Periodic System

and managed to obtain university scholarships. Throughout his university days in New Zealand, he studied and invented high-frequency electrical circuits and worked with radio waves. After he graduated with [...] confidence that Marsden would succeed. What if he failed? How would that affect the student’s future studies? Three days later, Rutherford, as usual sitting at his desk and writing, was interrupted by a loud

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• Rutherford’s Nuclear Atom

collaborat- ed with him to examine heat changes when gases expand and contract. Results of these studies paved the way for the development of the refriger- ator. Their first joint research was on the thermal

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• The hard work of experimenting James Prescott Joule, William Thomson, and the mechanical equivalent of heat.

regular teenage boy known for his good sense of humor and infectious laughter. After seven years studying at the University of Glasgow, William Thomson’s father encouraged him to continue his education [...] later led other scientists to important discoveries. It was in Regnault’s laboratory that he began to study the science behind the steam engine, which remained an interest to him when he returned to Cambridge [...] Joule’s work in the scientific community. One of the more popular topics in science at the time was studying the relationship between pressure and temperature in a certain volume of gas. Scientists at the

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• The hard work of experimenting James Prescott Joule, William Thomson, and the mechanical equivalent of heat.

ses applica- tions industrielles. Paris. Olson RG (1970) Count Rumford, Sir John Leslie, and the Study of the Nature and Propagation of Heat at the Begin- ning of the Nineteenth Century. In: Annals of [...] Mechanical Value of Heat: Instruments of Precision and Gestures of Accuracy in Early Victorian England. Studies in the History and Philosophy of Science 26, 73 - 106. Sichau C (2000): Die Joule-Thomson-Experimente: [...] eines Experiments. In: NTM 8:223-243. Smith C & Wise MN (1989): Energy and Empire: ¬A bio- graphical study of Lord Kelvin (Cambridge University Press, Cambridge - New York - Port Chester - Melbourne – Sydney

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• The hard work of experimenting James Prescott Joule, William Thomson, and the mechanical equivalent of heat.

his request was denied outright. What a letdown for Augustin! The government, having commissioned a study on the economic viability of solar energy, had concluded that there was no justification for further

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• Mouchot and the solar cooker

Additionally, French govern- ment assessed that solar energy was not enough economical. Mouchot studies become less im- portant as before. He hasn’t got more financial support. His activity concerned with

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• Mouchot and the solar cooker

quantitative research through his experiments. He was open minded, studied mathematics and in accordance to his father’s wishes pursued the study of Law, which influenced his in- terest in politics greatly. [...] Mazarin), which was known for its advanced teaching and focus on Ex- act and Natural Sciences. Here, he studied math- ematics and astronomy. Young Lavoisier was also interested in botany, geology, and mineralogy [...] courses. He left Collège Mazarin in 1761. In the same year, persuaded by his father, he took up Law studies at the University of Paris and obtained his Bachelor’s degree on September 6, 1763. One year later

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• Antoine Laurent de Lavoisier and respiration

he studied food from both a nutritional and economic point of view. Sir Ben- jamin observed that the soldiers in his re- organized army appeared healthy and robust, so he took note of and studied their

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• Rumford and nutrition

materials provided with the teaching unit Benjamin’s Mystery Soup are designed to be used in the study of nutri- tion in Biology or Health Education. The level of the materials is suitable for students

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• Rumford and nutrition