#MCell 2.20 #GAME Weighted Life #RULE NW1,NN2,NE0,WW32,ME0,EE4,SW0,SS16,SE8,HI0,RS5,RS7,RS10,RS11,RS13 #RULE ,RS14,RS15,RS17,RS19,RS20,RS21,RS22,RS23,RS25,RS26,RS27,RS28,RS2 #RULE 9,RS30,RS34,RS35,RS37,RS38,RS39,RS40,RS41,RS42,RS43,RS44,RS45,RS #RULE 46,RS49,RS50,RS51,RS52,RS53,RS54,RS56,RS57,RS58,RS60,RB3,RB6,RB1 #RULE 2,RB24,RB33,RB48 #BOARD 200x100 #SPEED 20 #WRAP 0 #CCOLORS 9 #D There are many ways of reflecting gliders both from stationary oscillators #D and moving spaceships. I won't try to list the 180-degree reflections #D exhaustively, since there are so many. I will include some of them in #D the larger patterns. So far, I have found one way of turning a glider #D 60 degrees and four ways of turning one 120 degrees. I haven't tried all #D the high-period oscillators, so there may be others as well. It's #D especially interesting that the period-48 spaceship can reflect gliders, #D because gliders move fast enough that they can circulate around a flotilla #D of moving objects in this way. Here are the three non-180-degree spaceship #D reflections: #D #D a) Glider is reflected 60 degrees, traveling up #D b) Glider is reflected 120 degrees, traveling to the right #D c) Glider is reflected 120 degrees, traveling up #D #D Paul Callahan, November 1997 #L 50.A$48.A35.A$49.A32.A$50.A32.A$51.AA31.A$85.AA$14.A$14.A$14.A..A24.AA #L 39.AA$4A10.A28.A40.A$A..A11.A28.A40.A$.3A40.A40.A.A$.AA41.A41.A.A$43. #L 5A36.3A.A$46.A36.4A.AA$46.A39.A.A$86.A