Energie: Verskil tussen weergawes
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k Wysigings deur 194.55.194.186 teruggerol na laaste weergawe deur Luckas-bot |
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Lyn 143:
*[http://www.physicsweb.org/article/world/15/7/2 What does energy really mean? Vanaf Physics World] {{en}}
*[http://www.renewableenergybenefits.com Renewable Energy Benefits] {{en}}
== Verdere leeswerk ==
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