2 didactic hours


Stjärnornas rörelse

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Average: 2.3 (3 votes)
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Could a trained rat become an astronaut on a flight to Mars?

3.666665
Average: 3.7 (3 votes)
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Keplers 3. lag

5
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Miksi rakettia ei voida lähettää avaruuteen sähkömoottorilla?

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Измерване константата на Планк

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Измерване ускорението на свободно падане

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Astronomical perpetual machine

4
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Rotta matkalla Marsiin

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Rotta astronauttina?

3
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Månen - en introduktion

3.5
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