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future tasks to develop the under- standing of the underlying truths that explain our empirical findings. You see, chemistry is not yet finished.” The boy did not seem to be too pleased with this response [...] was about to deliver a lecture to the prestigious Royal Institution, a lecture that condensed the findings of his researches of the last years, re- searches that were triggered by this question the schoolboy [...] that could be composed (or produced by de- composing other substances). Instead, he was trying to find mathematical rules in the chemi- cal reactions that went beyond the recipe ap- proach. The easiest

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• Dalton and the atoms

several groups of three chemical elements that behave very similar to each other in reactions. He could find several combina- tions of elements, and there were always three elements. Moreover, these elements [...] to identify several new elements. The more elements were known to chemists, the easier it became to find sub- stances that behaved similar. Figure 3 Mendeleev’s structuring of the elements. http://upload [...] undiscovered” (Moseley 1913, 713). In some sense, Moseley acts very similar to Mendeleev – he was able to find another math- ematical relation that described properties of the atoms, however, there were some gaps

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• Mendeleev and the Periodic System

internship report derived from the internship experience. 2. Recommendations • Which problems did you find and are there already solutions or do you have any recommendations? Are your recommendations feasible

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• Forms

nature and structure of matter” please discuss in your team this view. Research in the internet to find important experiments in the history of science, which were milestones for the development of science

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• Democritus and the atoms

Model: wiki.science-stories.org the mass of CO2, standard stoichiometric calculations could be used to find the mass of carbon in the original sample. One of Liebig’s most recognized and influential achievements [...] …………………………………… Actvity 4 The industrial production of Liebig’s meat extract was a poster. Please find more information in the website: http://blogs.princeton.edu/graphicarts/2007/09/from_beef_bouillo [...] increase the budget of the Bavarian army while increasing the number of troops and their wages, he had to find a means to re- duce costs. The first measure was to lower the costs of the soldiers’ uniforms by employing

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• Liebig and nutrition

quackery. Its main purpose was to abuse uneducated people. In this chaos, it was extremely hard to find reliable data, so we cannot be sure what scientific theories existed in that time. These theories

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• Democritus and the atoms

presented his results. Yet the scient- ists at these meetings were not really inter- ested in his findings and did not respond – ac- tually they did not even criticize his results even though they were far

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

model of Rutherford with the atomic model of Democritus. 1. Find and write the differences and similarities between the two atomic models. 2. Find and write the differences between the philosophical and [...] and Physical Sci- ence (specifically Electricity and Magnetism). After graduation, he had problems finding a permanent job. He applied to be a school teacher, but after multiple failed attempts to obtain [...] /rutherford-scattering and download the relevant application. Activate it and study it carefully. Find the controls with which you can choose a model of the atom. Make visible the orbit and amend the energy

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• Rutherford’s Nuclear Atom

them back to City Hall to be regis- tered. In an hour they had arrested all the beggars they could find—2600! That day marked the transformation of the city of Munich. The next morning, the by-now-former [...] Elector in June of 1792 and requested an inquiry in order to dispel the accusations. Even though the findings of the Commission ruled, narrowly, in Sir Benjamin’s favor, the antagonistic, unsettled situation

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• Rumford and nutrition

became a member of the Philosophical and Medical Society of Edinburgh. But his important scientific findings he published in 1753 in his classic work A Treatise on the Scurvy and dedicated it to Lord Anson

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• Lind and scurvy