Scott Manley's explanation of the ISS accident also introduces quaternions as a coordinate system for objects in space that solves the gimbal lock problem and has other desirable algebraic properties:<p><a href="https://www.youtube.com/watch?v=dDBt9rZhMb4" rel="nofollow">https://www.youtube.com/watch?v=dDBt9rZhMb4</a>
I recall from quantum physics classes a long time ago that some elementary particles are not identical to themselves 360 degrees rotated. You need a 720 rotation for that. I recently learned that quaternions have that same property. Would there be a relation?
Reasoning about space and time is just so much nicer in geometric algebra. There's a new cool community on geometric algebra <a href="https://bivector.net/" rel="nofollow">https://bivector.net/</a><p>The founder (Steven De Keninck aka enki) gave a talk at Siggraph2019 <a href="https://www.youtube.com/watch?v=tX4H_ctggYo" rel="nofollow">https://www.youtube.com/watch?v=tX4H_ctggYo</a><p>You should join the discord <a href="https://discord.gg/vGY6pPk" rel="nofollow">https://discord.gg/vGY6pPk</a>