Overview: What is energy? Where is it consumed? WHAT IS WHAT finds out where the energy actually comes from, which we use every day as a matter of course.
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First Air Date: Oct 06, 2001Last Air date: Jun 26, 2010Season: 2 SeasonEpisode: 52 EpisodeRuntime: 25 minutesQuality: HDIMDb: 0.00 / 10 by 0 usersPopularity: 2.132Language: German