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radioactivity. She worked out the equipment used to measure the radioactivity in the substances used in farming, and in 1924, together with Catherine Chamie, she published the work on radioactive decay [...] opment of the atomic theory as the original works of Leucippus and Democritus were lost and were actually known only through his criti- cism. Aristotle’s works were kept and expanded in the Islamic culture [...] decay constant of radon. While assisting her mother, and even replacing her in working in the Institute, Irene took up the research on the alpha particles emitted by the polonium – the element discovered by

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• Joliot-Curie and artificial radioactivity

very active in their scientific research. This was the reason why Irene had to stay at her desk working on the paper instead of going into the laboratory where she would usually be at this time of the [...] and so were the peaceful times. War broke out when Irene was only 17 years old, and she started working with her mother in military hospitals where they operated the X-ray ma- chines, an innovation to [...] the daughter of Marie Curie than a researcher by her own right. Espe- cially since, she was also working in the same field of radioactive research. However, she and Frederic gained more and more approval

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• Joliot-Curie and artificial radioactivity

from it a few dozen of sailors, soon not only will not be able to guide the cannons, but who will work on the sails?... We are in the sea since 2 April, it is almost seven weeks. Captain sadly looked down [...] scurvy is the result of putrefaction of the body, which can be aided by acids. On land that does not work. If I knew which alleviates the symptoms of scurvy, maybe I could help these poor... - Sit down, please [...] captain, doubtfully - Well? - One of them returned to service today, the second is ready to the light work on board! - Triumphantly said Lind - it seems to me that the oranges and lemons can help fight this

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• Lind and scurvy

research question, work it out with adequate scholarly methods, evaluate the results and present the reasearch and the results in an adequate way. Fachkompetenz Students are able to work adequately with regard

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• Enrolled Students

a great part of his life to the study of solutions, catalysis, and petroleum. He also wrote many works, including Principles of Chemistry. Dmitri Mendeleev was born on February 8, 1834 in Tobolsk, a town [...] gymnasium. Unluckily, his career was interrupted by the Crimean War, and the gymna- sium where he worked was converted into a hospi- tal. Mendeleev moved back to Saint Petersburg, where he became employed [...] Unfortunately, because of person- ality differences, their marriage ended in divorce. Mendeleev's work at the university ended un- expectedly. Having sided with his students over a dispute, he handed the

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• Mendeleev and the Periodic System

video with narration or listen to a story from your teacher about Benjamin Thompson (Rumford) and his work in the Trophology. Please write the most important points of the story according to your view and [...] narration, it is energy that is received in our body through food. A part of this energy is transformed to work that is produced through human labour. What becomes the rest of this energy? In order to answer the [...] ……………… ………………………………………………………………………………………………………………………………………………… Activity 8 project) The use of the work that the human body produces may replace electric or other forms of energy and thus contribute to

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• Rumford and nutrition

in the question. a. Level 1 (C1) i. Clarification or elaboration Question prototypes: How (does it work) … ? How do we know that (questioning explanation) … ? 2 Background: Scoring of Student Questions [...] (C2) i. Hypothesis or prediction generating Question prototype: What if … ? Example: Would a windmill work if it had 100 blades that were small? ii. Hypothesis or prediction testing Question prototype: If [...] cal questions indicate the highest level of thinking and, certainly, that critical thinking is at work. The lowest sub-level questions challenge relative pre- suppositions. The second sub-level questions

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• Rumford and nutrition

the description of the metamorphosis of cocoons, the description Sibylla’s work, the detection of time during which Sibylla’s work was developed,..) …………………………………………………………………………………………………………………………………………………… [...] It appeared 30 years after his death, published by the famous physician Théodore de Mayerne. …this work published in 1634 contained information that was gained some generations earlier. This can be taken [...] holometabolic insects. By the middle of the 17th century one can find an increasing number of published works on insects. Jan Swammerdam, a Dutch scholar, wrote in 1669 his ‘Historia Insectorum Generalis’ about

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• Sybilla Merian and Cocoons

aversion against any emptiness. This discussion flamed up again in the 17 th century. Beneath the work of Galilei, Torricelli and Pascal in Italy and France, the mayor of Magdeburg, a town in the center [...] aversion against any emptiness. This discussion flamed up again in the 17 th century. Beneath the work of Galilei, Torricelli and Pascal in Italy and France, the mayor of Magdeburg, a town in the center [...] to compensate the applied force of about ten men on the right. However, what one cannot see is the work that has to be done, to conduct this experiment. Schott illustrates in his technica curiosa a setup

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• Guericke and vacuum

exploring solar cooking, based on the work of Horace-Bénédict de Saussure and Claude Pouil- let. Horace de Saussure was a French - Swiss scien- tist and started his work of solar cooking in 1767 building a [...] stem power. Solar cooking was his another field of investigations. Exploring solar cooking he used works of Hor- ace-Benedict de Saussure and Claude Pouillet. Mouchot also demonstrated prin- ciple of ice [...] bizarre – even magical.” Mouhout won a first place medal at this exhibi- tion and could continue his work on the devel- opments. In 1869 he poured himself into writing the first book ever devoted to solar

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• Mouchot and the solar cooker