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cannon as well as a ballistic pendulum, the amplitude of the oscillation after firing the powder served as an indication of its quality. Whilst the initial research in not that important with respect to [...] in its initial equilibrium position. Comparing the distances of the two sources to the thermoscope serves as an indicator of their emission – Rumford took it for granted that the heat emitted from de- creases

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• Mouchot and the solar cooker

approach of Mendeleev: The open positions in Mende- lejew’s system, where no element could be placed, served as predictor for elements that had not been noticed until then. All the previ- ous attempts to create

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• Mendeleev and the Periodic System

approach of Mendeleev: The open positions in Mende- lejew’s system, where no element could be placed, served as predictor for elements that had not been noticed until then. All the previ- ous attempts to create [...] of which was agri- cultural methods. He had joined the Free Economic Society for Agriculture and served as a scientific con- sultant. In February of 1869, the Society commis- sioned Mendeleev to tour

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• Mendeleev and the Periodic System

be found, and Dalton had had the feeling that there had to be a hidden truth in Nature that could serve as an explanation of these ratios. Why did these chemical substanc- es combine according to fixed

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• Dalton and the atoms

thin. They ob- served that even though the vast majority of α-particles passed through the metal foil, with some of them being scattered, a few of them were reflected. Heilbron ob- serves that [i]n retrospect

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• Maria Skłodowska-Curie: discoverer of two radioactive elements

Royal Navy. Shortly after the end of the experiment on board HMS "Salisbury" James Lind ended up serving in the Navy and returned to Scotland, where he began his studies at the University of Edinburgh for [...] Haslar Hospital. The younger son, James (1752-1823), like his father, began his career in the Navy. He served at sea for many years, rising to the rank of captain. He commanded HMS "Centurion" has played a

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• Lind and scurvy

Royal Navy. Shortly after the end of the experiment on board HMS "Salisbury" James Lind ended up serving in the Navy and returned to Scotland, where he began his studies at the University of Edinburgh for [...] Haslar Hospital. The younger son, James (1752-1823), like his father, began his career in the Navy. He served at sea for many years, rising to the rank of captain. He commanded HMS "Centurion" has played a [...] soldier without raising the annual budget of the Bavarian Army, and 3. to permit the armed forces to serve in a civilian capacity in peacetime. The second and third aims, especially, led to Thompson’s major

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• Lind and scurvy

cannon as well as a ballistic pendulum, the amplitude of the oscillation after firing the powder served as an indication of its quality. Whilst the initial research in not that important with respect to [...] in its initial equilibrium position. Comparing the distances of the two sources to the thermoscope serves as an indicator of their emission – Rumford took it for granted that the heat emitted from de- creases

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

confined environment for his next investigation and convinced one prison to change the rice being served to the prisoners from cooked, polished rice to unpolished rice. The result was that all of the cases

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• Eijkman and Beri-Beri

outstanding assistant, friend, and partner in his scientific research. From 1775 onwards, Lavoisier served in the Administration Royale Des Poudres, where his research led to improving gunpowder and invent- [...] soldier without raising the annual budget of the Bavarian Army, and 3. to permit the armed forces to serve in a civilian capacity in peacetime. The second and third aims, especially, led to Thompson’s major [...] Hampshire where he married his first wife. The town is called Concord today (see Bouton 1857). 2 Thompson served as Under-Secretary of State for the Colo- nies until 1781 and as Colonel of the King’s American Dra-

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• Antoine Laurent de Lavoisier and respiration