There is something special about rotations of 137.5 degrees.
This is an attempt at replicating Seeds by Jared Tarbell of Levitated and Complexification.
Mathematica code:
d[x_, y_, r_, c_, s_, F_, n_] :=
{Disk[
RotationTransform[n*2.4][{x*c^n, y}], r*c^n],
Table[
{White,
Disk[
RotationTransform[k*2 Pi/F, RotationTransform[n*2.4][{x*c^n, y}]]
[RotationTransform[n*2.4][{x*c^n, y}] + c^n {r - s, 0}], s*c^n]},
{k, 0, F - 1, 1}]}
Manipulate[
ImageCrop[
Graphics[
Table[
d[3, 0, 1 - .1*Sin[t + n*Pi/110]^2, 1.025, .03, 24, n],
{n, 0, 110, 1}],
PlotRange -> 30, Background -> Black, ImageSize -> 700],
{500, 700}],
{t, 0, 39 Pi/40, Pi/40}]
Manipulate[[
ImageCrop[
Graphics[
Table[
d[3, 0, 1 - .1*Sin[t*3 Pi/40 + n*2 Pi/110]^2, 1.025, .03, 24, n],
{n, If[t < 66 , 0, 2 (t - 65)], If[t < 56, 2 t, 110], 1}],
PlotRange -> 30, Background -> Black, ImageSize -> 700],
{500, 700}],
{t, 0, 120, 1}]
(via shinyslingback)
NASA’s Cassini spacecraft looks toward the night side of Saturn’s largest moon and sees sunlight scattering through the periphery of Titan’s atmosphere and forming a ring of color.
(via likeaphysicist)
Jesmond Dene 1212 by - Hob - on Flickr.
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(Source: sabrinacampagna)
Staphylococcus aureus, the bacterium responsible for staph infections (via.)
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(by werkadopolis)
(via shinyslingback)