(no subject)

oh yeah, i could also talk about what the path of light looks like near a black hole (iirc it gets deflected by

um, "d" is the nearest that the light would get if it stayed on its initial course? and "r" is the denominator's first positive root.)

in maple,

plot(Int(1/sqrt(x^3 - x^2 + C^2), x=0..RootOf(x^3 - x^2 + C^2, x, 0..1))*2 - Pi, C=0..sqrt(4/27), labels=["2*G*M/d", "deflection"], view=[0..0.3846, 0..8]);

yes, the light can go several times around the black hole before escaping! :D