Diagram Recommended Field Resolution Gratuito

Hey, Vsauce. Michael here. I am at the White House, in America's capital, Washington, D.C. America makes a lot of feature films every year - Hollywood. But they don't make the most feature films every year. Nigeria makes more. But the country that makes the most films every single year is India. Every two years, the country of India fills up enough film with unique feature films that stretch all the way from this city, Mumbai, to where I live, in London. That's double what Hollywood produces in two years. That is a lot of movies, but is real-life a movie? I've discussed the frame rate of the human eye before but how does the resolution of the human eye compare to a camera or screen? VHS, LaserDisc, DVD, Blu-ray, IMAX. Numbers like these are pixel dimensions. When multiplied they tell us the total number of picture elements an image is made up of. A figure often used to describe digital cameras. It might sound like more is better, but to be sure numbers like 1920 by 1080 are not resolutions per se. More pixels is only part of the equation. Resolution is about distinguishing fine details and that depends on a lot of other factors. For instance, the amount of light, the size of the sensors, what the millions of pixels are actually encoding and how close the subject is. I mean, up close Salvador Dali's painting of his wife looking at the Mediterranean can be resolved into boxes. But from a far, well, it's Abraham Lincoln. For crying out loud, on a small enough screen from far enough away, low and high, so-called resolutions on screens, aren't even resolved differently from one another by your eye. How different nearby pixels are from one another also matters. This is called spatial resolution. For instance, if I go out-of-focus the number of pixels in the video frame stays the same but you can't resolve as much detail. Now, with all this in mind we can still compare human vision to a digital image, by asking a better question. Assuming everything else is optimal, how many pixels would you need to make an image on a screen large enough to fill your entire field of view look like real life, without any detectable pixelation? Now we are getting somewhere. Kind of. The analogy is still crudy because a camera snaps an entire frame at once, whereas our eyes move around. The brain amalgamates their constant stream of information into what we call vision - sight. In fact, the image created by the eyeball alone during a single glance would hardly even be acceptable on a broken TV screen. We think our eyes create images like this picture Guy took of me with a camera. But for one thing, unlike a camera, you've got some stuff in the way. For instance, you are always looking at your own nose, and maybe even glasses, if you have them. Luckily, our brains process those stimuli out because they don't matter and they don't change. But thinking those are the only difference is a pitfall, literally, latinly. The fovea gets its name from the Latin for 'pitfall'. The...