Roni has a piece of old lexan, brittle but still ok to use , the trick is cutting it, a hot knife is the tool of choice.
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https://www.youtube.com/watch?v=sRZkWSLw4ks
Every Friday Sabrina holds mixer at her pad. In this one P. S. A. (Public Space Asso. member ) named Gary attended, at the end of the evening Roni and Gary talk about space stations and then Roni explained to Gary how the Biased Kenetic Propulser works
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https://www.youtube.com/watch?v=Lt1LgiAoQP8