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Re:Background on the Falcon 9 Launch by enraged_camel on Tuesday December 22, 2015 @10:12PM (#10781750)
Yep, came here to post this. The funny thing is that there was a post about that video a while back, and the HN crowd criticized it pretty heavily for being a bad way to explain gravity. But... whatever. :)
Re:Background on the Falcon 9 Launch by mturmon on Wednesday December 23, 2015 @01:32AM (#10782256)
Here is the discussion, which was interesting but inconclusive about the merits of this rubber sheet model: https://news.ycombinator.com/item?id=8542244