Rolf Kranen Posted April 3, 2017 Share Posted April 3, 2017 Hi,I'm Rolf, an entrepreneur from Germany. We created some animations on the workings of gravitation and centrifugal forces in the Universe. Perhaps, someone find it useful or want to give feedback link deleted Best wishes, Rolf Link to comment Share on other sites More sharing options...
swansont Posted April 4, 2017 Share Posted April 4, 2017 ! Moderator Note Rolf, Rule 2.7 forbids advertising your site or youtube channel. This is a discussion site. If you want to discuss something, feel free. If all you want is to drive traffic somewhere, no thanks. Link to comment Share on other sites More sharing options...
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