3D (Re: We see in 3D all the time)
Snickering at people who get ill from flickering lights is just stupid, ignorant and very unmature!
When I was young we looked at stereoscopic pictures, but now it is called 3D, which is a misnomer, as we don't have three eyes, thus elevation information is not that good with just two eyes. Computer-generated, or recorded, so called 3D can easily make a lot of us dizzy or sick, as the resolution is poor, the colours are poor, and the update frequency probably is low (just a guess, but quite possible), which for those with fast retinas is a problem - I got terrible headaches running certain games on my Risc-OS machine as they had a lower CRT update frequency than normally. 40Hz was just about where my eyes still tried to keep up, higher frequencies and I had no problem!
We, the wife and I, have a few 3D films (you need glasses of the green&red type for those), non very impressive, as the colours are worse, as are the resolution, compared to the normal versions.
If you have the modern type of 3D glasses, with Kerr-cell shutters, the TV has to be able to output images very fast (over 200Hz), to not be felt flickery by those with fast retinas.
So if you have fast retinas your eyes try to keep up with the flickering light of the TV, or cinema - in a cinema normal frequency is 24 pictures per second, aka 24HZ, but if you're going stereoscopic (aka 3D), you need 48 - quite a tall order! I guess the movie companies cheat some way, or other, and then the flickering becomes worse, and those with fast retinas will get nasty headaches, just as with fluorescent tubes, which flicker a lot, but most people don't notice, but some do, due to their fast retinas trying to keep up with the flickering - the rest give up at once! Those with fast retinas develope headaches in fluorescent tube light, while the rest, like me, with sadly slow muscles in their eyes don't notice anything special!
Just because I'm not affected doesn't mean I fully understand other's problems! Only a young oaf, who thinks he knows all, would be sacastic when someone tells about their wives problems. Get mature, kid, grow a beard, get a girl, and be a little bit civilized, PLEASE!
