Light was long considered to be a wave, exhibiting the phenomenon of interference in which ripples like those in water waves ...

The questions in this quiz are suitable for GCSE physics students studying convex and concave lenses, real and virtual images, magnification and colour. If you struggled with the quiz, don't panic ...

The first telescopes refracted light, and today reflectors dominate, but there is a third way to make light focus, and it ...

For centuries, lenses have worked the same way: curved glass or plastic bending light to bring images into focus. But traditional lenses have a major drawback—the more powerful they need to be, the ...

For centuries, the optic lens has bent light through translucent, curved material, but now flat lenses are reimagining the ...

For centuries, cameras and telescopes have relied on curved glass or plastic lenses to bend light and bring images into focus ...