Gradient sunglasses are two-tone sunglasses, which makes them ideal for wearing both indoors and outdoors. A metal oxide is added to the lens material to create the difference in tones. The top ...

A morphogen is a type of signalling molecule that imparts pattern to a developmental field by acting directly on cells in a concentration-dependent manner. The best-studied model system for ...

Color gradient filament is fun stuff to play with. It lets you make 3D prints that slowly fade from one color to another along the Z-axis. [David Gozzard] wanted to do some printing with this effect, ...

Non-fiction texts are everywhere – from class textbooks to diary entries, from newspapers to social media posts, from instruction manuals to film reviews. It is useful to know how these texts are put ...