The answer is that water really is blue, but only very faintly. You need a huge amount of it in one place to see the colour at all. As light travels into water, all the red and green light (all ...

Early 20th-century photographs taken using the short-lived process reveal the luminosity, hue and texture of the clothes of ...

Red, green and blue filters each transmit a single primary colour. Any other colours present in the light are absorbed. A red filter only transmits red light. It absorbs blue light and green light.

Many gardeners are working hard to secure colourful summer flowers, and growing one perennial plant could bring pink and blue ...

The animal's eyes change from a golden colour to a deep blue as summer fades to winter, helping it to see in dramatically different light levels. The part that changes colour is called the tapetum ...

Stylish yet serene, our blue bathroom decorating ideas prove once and for all that this sea-inspired hue is the ultimate bathroom shade.

OnePlus has expanded its premium audio lineup with the introduction of the Buds Pro 3 in a new Sapphire Blue colour ... boasts a leathery texture on the front and back, with metallic-finished ...

New types of Catmint grow in a tidy mound, and "lavender, blue, or pink flowers last for weeks from spring to late summer", ...