Of the making of books, said Solomon, “there is no end, ….” We forbear to finish his quotation, but could he have lived to see the catalogue of a modern publisher his conclusion might have been ...

Geometrical optics, a branch of optics that eschews wave phenomena in favour of ray propagation, continues to underpin advances in lens design and optical engineering. Contemporary studies in this ...

Sunlight, moonlight, torchlight, and flashlight... They all come from different places, but they’re the very same thing: light! It’s what makes it possible for us to see the world around us, so it’s ...