Lots of photons flying in circles around a black hole! @.@ Why is this even popular?
newtonian
random
pretty
persistent
photon
rainbow
orbit
gravity
filt
bhol
Comments
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Nice! This proves portal 2 is pretty good!
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You might have to reload when you open it for the first time.
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oh wait i figured it out
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how do you turn on newtonion gravity?
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thinking with portals-your doing it right