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a fluorescent screen. Of course, you can’t see them unless you use a microscope, and your eyes can’t detect them unless you first sit in total darkness for at least a half hour with your eyes open. [...] he replied, “Hans, explain yourself!” Geiger continued, “We have used a radium source to project alpha particles at a gold foil mounted on a thin, glass plate and find that about one in twenty-thousand [...] born, but it was not until two years later that Rutherford first used the word “nucleus” to describe the center of the atom. References Geiger, H., & Marsden, E. (1909). On a diffuse reflection of the

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• Rutherford’s Nuclear Atom

.“(Lavoisier 1794, xxiii) Remarkably, Lavoisier is already using the term ‘atom’, even though he is not using an atomic theory. However, this notion of element that gets evident in this quotation [...] more complex. Despite this criticism, the stoichiometric laws were used by chemists, and some of them used fractional numbers to express the ratio of masses – indi- cating that there was no inseparable [...] discussions amongst the chem- ists who accepted the atom as a useful hypoth- esis, the physicists started to use the atom as a real object with explanatory power. Particular- ly the developing science

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• Rutherford’s Nuclear Atom

the authors, and the Commission cannot be held responsible for any use which may be made of the information contained there in.

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• Rutherford’s Nuclear Atom

the roving thievery and turn their activities to more productive use, first to rid the countryside of all tramps, beggars, vagrants, and smugglers. In the following three- and-a-half years, the troops [...] have had objec- tions to this earlier, but now they had gotten used to the soup, and no one complained or rejected it. He had, unknowingly, invented the soup kitchen. With everyone in the workhouse [...] the author, and the Commission cannot be held responsible for any use which may be made of the infor- mation contained therein.

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• Rumford and nutrition

the authors, and the Commission cannot be held responsible for any use which may be made of the information contained there in.

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• Rumford and nutrition

how a cannon is produced. When you imagine a cannon (like one used by pirates or in ancient for- tifications), it can be described as a metal barrel with a long, centered hole in it. Now you may think [...] hot to be touched with the naked hand, he ordered the workers to use the water to cool the metal and to continue working. After a while, he noticed that the water was getting warm, and after some more [...] author, and the Commission cannot be held responsi- ble for any use which may be made of the information con- tained therein.

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• Rumford and calorics

the authors, and the Commission cannot be held responsible for any use which may be made of the information contained there in.

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• Rumford and calorics

historical background is to form a basis for stories that may be used individually or combined, and that enable teachers to address these three aspects. The historian and philosopher of science Thomas [...] commonly used in beer brewing, thus Joule was very versed in controlling the thermal situation in such a vessel – an insulat- ed one (which could [...] power of gunpowder, which was used for over a century. He also performed experiments to determine the recoil of guns in different situations. The income of his position

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• Rumford and calorics

Graffiti Introduction Rotational Graffiti is an activity that can be used as a group brainstorming strategy to tap into students’ prior knowledge at the beginning of a lesson. Procedure 1. The teacher assigns [...] surface to focus on the les- son that follows. Teachers may opt to use only student questions as described in item 7, be- low, instead of the Gallery Walk. 7. Students may be asked to write any questions [...] authors, and the Commis- sion cannot be held responsible for any use which may be made of the information contained therein. 2 Background: Rotational Graffiti Storytelling Teaching Model: http://

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• Rumford and nutrition

apply for a PhD in Germany www.research-in-germany.org/phd-course USING AUGMENTED REALITY TECHNOLOGY TO WATCH VIDEOS Photos marked with the play symbol can be quickly turned into videos: 1. Visit the App [...] ENGLISH And then there is the language: learning German is very useful when it comes to deal- ing with everyday life – however, doctoral students can write their thesis in English at most faculties. [...] ly attractive to international doctoral stu- dents, as they often use English as their working and teaching language. Many pro- grammes explicitly target international PhD candidates. Half of the PhD

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• Doctoral and Early-Career Researchers