# Tag Info

• 29.1k
1 vote

### How does RGB really work with subpixels?

The luminance that sensed by your eye is the brightness Y = 0.2126 R + 0.7152 G + 0.0722 B. It is actually the yellow color. Similarly the white balance (the proportion of R,G,B ) for a peak white ...
• 21
Accepted

### How does RGB really work with subpixels?

If I use a testing website and set the value of red to 200 for example(0,0 for green and blue), the color is darker. (I assume you mean darker than 255,0,0.) Not just less bright, but the red is ...
• 19.4k
1 vote

### Scattering Of Light- How does it happen with Sun and Earth?

It isn't the distance from the Sun to the Earth that matters. The Earth's orbit isn't circular. Distance varies over the year. Yet sunsets are red all year long, and noon isn't. Instead, it is the ...
• 28.2k
Accepted

### What do we actually mean when we say "light"?

Most of the time, light means electromagnetic waves in the visible part of the spectrum. But sometimes people talk about all electromagnetic waves as light. If there is doubt, visible light is a ...
• 28.2k

### Can anyone explain this peculiar optical phenomina?

The simple answer is diffraction. If you've never heard of that before - it's basically light passing through a tiny slit and creating interference patterns on the other side of that hole (see this: ...
• 1,805