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04Dark-matter halo — orbits change the moment invisible mass is added

Add a distribution of mass you never draw, just outside the visible disk — outer stars keep their rotation speed instead of falling off. One toggle demonstrates on screen why galaxy edges orbit faster than they should.

Best forScience content, educational interactives

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Dark-matter halo — orbits change the moment invisible mass is added
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04 Dark-matter halo — orbits change the moment invisible mass is added — Measured area 37.479% · moving frames 23/23Original by GODRICH · SCSS and React ship in the zip · N Body Simulation, 9 Ways (Galaxy, No Library)

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N Body Simulation, 9 Ways (Galaxy, No Library) - preview of all 9 demosN Body Simulation, 9 Ways (Galaxy, No Library)No library, no WebGL — integrate Newtonian gravity on every star, every frame, and two galaxies shear past, throwing tid See all demos in this post

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