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mass of nitrogen in relation to the mass of oxygen was 7:8, in a second compound 7:16, and in a third, 7:4. Based on his analyses he for- mulated the law of multiple proportions. This law says that if [...] for considerations of purpose, whether natural or divine. The second factor was the ad hoc nature of the atomists’ explanations”. (Loose 2001, 25) Additionally, there was a rival concept which appeared

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• Lavoisier and the conservation of mass

besieged by the Habsburg army twice – in 1629 and 1631. During the second siege, the city surrendered. Around 20 000 habitants of the city were killed by the soldiers, their goods were plundered, and the

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• Guericke and vacuum

besieged by the Habsburg army twice – in 1629 and 1631. During the second siege, the city surrendered. Around 20 000 habitants of the city were killed by the soldiers, their goods were plundered, and the

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• Guericke and vacuum

and astronomer Johannes Lichtenberg, who lived in Mainz in the second half of the 15th century. When Georg was 9, his father died. In 1752, Georg was enrolled in the secondary school in Damstadt. Thanks

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• Lichtenberg and the electrophorus

and astronomer Johannes Lichtenberg, who lived in Mainz in the second half of the 15th century. When Georg was 9, his father died. In 1752, Georg was enrolled in the secondary school in Damstadt. Thanks

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• Lichtenberg and the electrophorus

for considerations of purpose, whether natural or divine. The second factor was the ad hoc nature of the atomists’ ex- planations. (Losee 2001, 25) Additionally, there was a rival concept of the four

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• Maria Skłodowska-Curie: discoverer of two radioactive elements
• Joliot-Curie and artificial radioactivity
• Rutherford’s Nuclear Atom
• Dalton and the atoms
• Lavoisier and the conservation of mass
• Democritus and the atoms

all time, was born on August 30, 1871 in New Zealand. He was the second son and fourth child of twelve born to James and Martha Rutherford. His father worked making wheels for carts, and as an engineer. [...] ever dig!” What a major stroke of luck—although he had placed second in the scholarship competition, the prize had been awarded to him when the win- ner decided not to take it. The second major turning [...] for considerations of purpose, whether natural or divine. The second factor was the ad hoc nature of the atomists’ explanations”. (Loose 2001, 25) Additionally, there was a rival concept which appeared

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• Rutherford’s Nuclear Atom

experiments he deter- mined the coefficient as 838 ftlb/BTU, in a second series published in the same article he gave 770 ftlb/BTU. Looking at the data Joule published gives some insight into Joule's [...] France from Eng- lish coal. This was the moment when the French second- ary school teacher Augustin Mouchot entered the stage. Mouchot combined two devices that had been known previously: A blackened

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• Mouchot and the solar cooker

mass of nitrogen in relation to the mass of oxygen was 7:8, in a second compound 7:16, and in a third, 7:4. Based on his analyses he for- mulated the law of multiple proportions. This law says that if [...] for considerations of purpose, whether natural or divine. The second factor was the ad hoc nature of the atomists’ explanations”. (Loose 2001, 25) Additionally, there was a rival concept which appeared

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• Dalton and the atoms

which materials he should use to clothe the army. The goal of his second experiment was to create the most cost-effective and nutritious soup to feed the mili- tary and the workers in the clothing-production [...] tical glass bottles. He filled one bottle halfway with wa- ter, a second bottle with an equal amount of wine, and a third with mercury. After sealing the bottles, he added weights to make them all exactly

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• Rumford and nutrition
• Rumford and calorics