ABOUT two miles above Ormeim, in the Romsdal (Norway) is the well-known Slettafos, an imposing cascade formed by the impetuous Rauma, which here lunges through a deep rocky ravine. Fascinated by the ...

You can see them positioned opposite one another on the color wheel above. Note that there are various color models, on top of RYB, which produce different complements. For example, within the ...

Color harmony, meaning the principle of colors working well together, is a significant component of design. Architects, designers and specifiers must strategically consider how colors will interact in ...

IN connection with this subject, which was referred to in Mr. Terrill's letter in NATURE for May 17, perhaps the following homely way of illustrating the fact that the combination of two complementary ...

If you stare for a long time at a large coloured image and then glance at a white background, you’ll see the same image appear, but in its complementary colours. That’s because the receptors in the ...