Teaser
Fossil fuel (fossiler Brennstoff) was firstly mentioned by Andreas Libavius, a german physician, in 1597 and later used by Mikhail Lomonosov, a russian polymath (man with high knowledge at different subjects) and scientist, in 1757. The term "fossil fuel" was firstly used by Caspar Neumann, a german chemist, in 1759. Fossil means, that it is obtained by digging into the ground.
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Introduction
As part of our "Interdisciplinary project work 3" we will look at the past of the use of nuclear energy, the present of the use of nuclear energy and the future of the use of nuclear energy.More...
Teaser
Hydrogen (Wasserstoff) was discovered in 1766 by Henry Cavendish, an English scientist, when he made base metals react with acids (Säuren). He called the element "phlogiston". In 1783, A. L. de Lavoisier succeeded in synthesizing the gases hydrogen and oxygen to water. Lavoisier then named hydrogen after two Greek (griechisch) terms: hydro (water) and gennao (I generate) as "hydrogene" – “I generate water”. In 1814, the element symbol "H" was introduced by Berzelius, a Swedish chemist. But how has this element changed over the years?
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"Stored deep under us and ready to release"
Expression
The term "geothermal energy" refers to energy stored in the subsurface in the form of heat. At a depth of about 15 meters, the surface temperature remains constant throughout the year. In Switzerland, the temperature below the surface generally increases by around 30°C for every kilometer of depth. The temperature at a depth of 5'000 metres is about 160°C. At depths greater than 1'000 meters, significant amounts of heat above 40°C can be used. This geothermal heat can be obtained using various methods.
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Showcase "Energy 100 years ago, today, in 100 years"
Tell a story how the world will look like in 100 years. Share your vision about the future in a specific topic you choose. Do research how it was 100 years ago and today. Build teams in max 2 students. All showcases are presented in a single contribution on https://dontwastemy.energy.
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