3.12.2 Greatest hits from previous weeks

3.12.2.1 Beautiful dance of the Earth and Venus around the sun

http://mathematica.stackexchange.com/questions/115358/beautiful-dance-of-the-earth-and-venus-around-the-sun

 
I have seen very nice dynamic graphics created by users of Ma. I would like to get help whether the following graphics can be created using Ma. I was not able to create the dynamic picture here.  ...
 

- asked by ramesh (12 votes), answered by ubpdqn (6 votes)

3.12.2.2 How can this image (optical illusion) be created with Mathematica?

http://mathematica.stackexchange.com/questions/24148/how-can-this-image-optical-illusion-be-created-with-mathematica

 
I came across this image the other day: 
 
 
 
and liked the sensation of it pulsing. I was wondering if anyone would know how to create something similar with Mathematica (without the Pink Floyd Dark  ...
 

- asked by Mike Honeychurch (53 votes), answered by halirutan (66 votes)