Comments on: Anti-Grav Helicopter http://cipherblog.net/2008/01/04/anti-grav-helicopter/ This blog isn't dead, the Wordpress admin was corrupted and it took months to pinpoint the problem. No joke. Mon, 15 Mar 2010 20:13:57 +0000 http://wordpress.org/?v=2.7 hourly 1 By: Vladislav26 http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-530 Vladislav26 Mon, 15 Mar 2010 06:39:48 +0000 http://cipherblog.net/?p=89#comment-530 <a href="http://newestfilm.ru/" rel="nofollow">новые фильмы</a> новые фильмы

]]> By: Vladislav22 http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-529 Vladislav22 Sat, 13 Mar 2010 18:32:22 +0000 http://cipherblog.net/?p=89#comment-529 <a href="http://allsizemusic.ru/" rel="nofollow">Виниловые пластинки</a> Виниловые пластинки

]]> By: Koo http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-510 Koo Fri, 29 May 2009 12:56:20 +0000 http://cipherblog.net/?p=89#comment-510 Ackmey and JD, Urban Bomber never said the two were related. He just said that around 60mph, it starts to look like the wheels are stopping or going backwards. He never said at exactly 60mph, because of our 60mph frame rate, the wheels appear stopped, did he? Ackmey and JD, Urban Bomber never said the two were related. He just said that around 60mph, it starts to look like the wheels are stopping or going backwards. He never said at exactly 60mph, because of our 60mph frame rate, the wheels appear stopped, did he?

]]> By: Ackmey http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-509 Ackmey Sun, 17 May 2009 02:48:00 +0000 http://cipherblog.net/?p=89#comment-509 "Or have you noticed how driving next to a car doing around 60mph, the wheels look like they stop or even start to “spin” backwards? same concept. this is because the human eye has a resolution of about 60fps" 60mph and 60fps are not equivalent... “Or have you noticed how driving next to a car doing around 60mph, the wheels look like they stop or even start to “spin” backwards? same concept. this is because the human eye has a resolution of about 60fps”

60mph and 60fps are not equivalent…

]]> By: Curious George http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-506 Curious George Wed, 01 Apr 2009 02:02:00 +0000 http://cipherblog.net/?p=89#comment-506 Ah, thanks, jeff and JD! Sorry, it should have been obvious, I guess, haha. Ah, thanks, jeff and JD! Sorry, it should have been obvious, I guess, haha.

]]> By: JD http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-505 JD Tue, 31 Mar 2009 21:20:26 +0000 http://cipherblog.net/?p=89#comment-505 Urban Bomber 60 mph has nothing to do with 60 fps, so please don't lecture everyone here about your in-depth knowledge of physics. It's called aliasing- which is when the sampling rate is not high enough to capture the phenomena being observed. High frequencies wrap according to the Nyquist criteria around into low frequencies (That's why sometimes wheels look like they are spinning slowly or even stopped, as with this video). The same thing happens with computer graphics - the sampling rate (number of pixels) is not high enough to display an sharp edge attempting to be rendered, and you get blocky edges. Urban Bomber

60 mph has nothing to do with 60 fps, so please don’t lecture everyone here about your in-depth knowledge of physics.

It’s called aliasing- which is when the sampling rate is not high enough to capture the phenomena being observed. High frequencies wrap according to the Nyquist criteria around into low frequencies (That’s why sometimes wheels look like they are spinning slowly or even stopped, as with this video). The same thing happens with computer graphics - the sampling rate (number of pixels) is not high enough to display an sharp edge attempting to be rendered, and you get blocky edges.

]]> By: JD http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-504 JD Tue, 31 Mar 2009 21:15:07 +0000 http://cipherblog.net/?p=89#comment-504 Curious George The shadows are always there. When the camera stores a frame, the blades happen to be revolving and always being at the same point. And shadows are always there - just because the blades are rotating fast doesn't mean they outrun light =) Why wouldn't the shadows be there? Curious George

The shadows are always there. When the camera stores a frame, the blades happen to be revolving and always being at the same point.

And shadows are always there - just because the blades are rotating fast doesn’t mean they outrun light =) Why wouldn’t the shadows be there?

]]> By: JD http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-503 JD Tue, 31 Mar 2009 21:12:36 +0000 http://cipherblog.net/?p=89#comment-503 It's aliasing. It’s aliasing.

]]> By: jeff http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-500 jeff Mon, 09 Mar 2009 15:11:25 +0000 http://cipherblog.net/?p=89#comment-500 yes of course it would, think of each frame as saving a moment in time.. its like a really long flip book, at the instant that frame took its picture, there would be a shadow where-ever the blade is at that moment, if you repeat that at the same rate at which the blades are spinning you would have the shadow in the same spot every time (when the blade went around), so the shadow is in the same spot..... yes of course it would, think of each frame as saving a moment in time.. its like a really long flip book, at the instant that frame took its picture, there would be a shadow where-ever the blade is at that moment, if you repeat that at the same rate at which the blades are spinning you would have the shadow in the same spot every time (when the blade went around), so the shadow is in the same spot…..

]]> By: Curious George http://cipherblog.net/2008/01/04/anti-grav-helicopter/comment-page-1/#comment-499 Curious George Mon, 09 Mar 2009 01:11:33 +0000 http://cipherblog.net/?p=89#comment-499 I get the FPS synced up with the blade rate. But would that cause the shadows of the blades to be seen on the helicopter? Confused on that part. I get the FPS synced up with the blade rate. But would that cause the shadows of the blades to be seen on the helicopter? Confused on that part.

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