farbgestaltung wand rot
hey nblogs. pascal here. =) facebook is quite blue. if we delete all images and all avatars, we get a backbone of black fonts, white background and blue highlights, like the navigation and the links. but why is that? blue is one of the colors, mark zuckerberg, the founder of facebook, can really see as a "blue color". because like him, 0.8 % of all women and 9 % of all men
are affected by the color blindness of red and green color. that means, he is unable to distinguish red and green color. for him, red and green looks like this. so it's not surprising why zuckerberg chose blue for facebook. this wall behind me and those petunia from my balcony are something, zuckerberg could really see as a color: they are yellow. and for you, they are pretty yellow on the screen, too.
but is that, what comes out from your screen, really yellow? for this we have to check, what yellow and other colors really are. all colors we humans can see, are electromagnetic radiation. the visible spectrum of the electromagnetic radiation is called "light". and individual areas of this light in this electromagnetic radiation is called a color. small sidefact. the light speed is the fastest speed possible, matter and light can travel
through space. light can travel in 1 second easily around the whole equator ... about 7.5 times. if light - photons - will be send through matter - let's say, our atmosphere - then light becomes slower itself. the light becomes slower than lightspeed. the effect is not really big. here at the ground, light travels with about 0.028 % less than light speed.
but 0.028 % of light speed are in fact a distance of nearly 8,400 kilometers per second. the distance is even higher than a direct flight from munich (germany) to beijing (china). but different colors have nothing to do with different light speeds. light itself has another attribute: frequency we can imagine the frequency of light in this way: instead of light that traveles a straight line, light traveles in a waveform. and the distance between those waves
gives us the colors, we can see. to be yellow, my plant is using subtractive light / yellow. that means, it absorbs every light in the visible light spectrum with an exception of yellow. and that yellow light strikes our eye and is perceived by us as yellow. this apple is also pretty yellow to me. bit is it yellow to you in the same way? the screen you are watching right now does not produce any kind of yellow color. instead, it shows you red and green at the same time. that is, because every normal monitor just creates red, green and blue color. the so called rgb color space.
this kind of color mixing is called additive color. with the additive color, several colors are combined... ...but more explains "the panda". first, you say "please". please... please please... the additive color mix is a physiological phenomenon and deals with our eyes and the brain. with it, the colors red, green and blue are mixed together to create brighter colors visually. the effect is best, when it happens on a very small space. for example pixels on screens.
that means, (the screen) isn't really yellow? that's correct. if we combine red and green light in an additive way in a very small space, we get a yellow color as a sensation in our minds. thanks for your advice. let's keep moving on. see ya. ok. in real live, yellow things seems really yellow. and on a screen, it might be fake yellow. but if a screen can fool me so easily, what is telling me, that this apple is not red and green (at the same time) in real live?
the photoreceptors in our retina (here green) who are dealing with light, are rods and cones. the rods (blue) are dealing in less intense lights and can see differences contrasts. the cones however are dealing with the colors. we humans have three different kind of cones. the s-type, the m-type and the l-type. those three types can work with three different kind of wave lengths. particularly with blue, green and ... yellow? is that right? yes, of course. okey... auge-online.de wrote a very good article about this.
the red cones are processing only the color red. (almost) but in fact, the red cones are best in dealing with the colors yellow and light green. so the question would be more correct: can we see really red? or a mixed color for our cones, cyan? by red it's technically easy a yes. because the red cones are reacting to yellow color the best, but they are transmitting the information about the red thing and informs our brain with it. with cyan, it becomes more interesting. because two or three cone types are reacting at the same time to the color.
but anyway: as long as they react and as long as our brain combines them additively, our color perception is working quite fine. and that shows, how brilliant our brain and our body are interacting with our world. even if we are not aware with it at any time. and as always: thanks for watching. =) hey panda. pascal here. and..? how was it? for your first time in this type of video creation, it was not that bad.
thanks. *smooch* oh, you are still there? then tell me in the comments, how often i change my shirt in this clip. you changed your shirt? of course. this clip was about colors, so i used different colors (on my shirts). do you know how much colors? does he know? no, i don't know...
i have to watch it again. then you should watch it again, too, and tell me about it in the comments. i'll see you next time. goodbye. =) *pandaaaaaaaaah*