Gravitional lensing is one of my favorite phenomenon in physics. I did once a web version of it. Here is the link if you want to play with it.<p><a href="http://cihadturhan.com/lab/gravitional-lensing/" rel="nofollow">http://cihadturhan.com/lab/gravitional-lensing/</a>
At present, the title here on HN is "Gravitational lensing by spinning black holes in astrophysics" -- to which my immediate reaction, and I suspect not only mine, is: what, as opposed to in cookery?<p>The original article title gives the answer: "... and in the movie <i>Interstellar</i>". Since the article really is about the rendering techniques used in the movie as well as about the physics of rotating black holes, I suggest that the HN title be made to match that of the original article.
Gravitational lensing or just large magnetic fields bending light? <a href="http://www.gizmag.com/synthetic-magnetism-stanford-photonic-crystal/25261/" rel="nofollow">http://www.gizmag.com/synthetic-magnetism-stanford-photonic-...</a>