Colored filters enhance lunar details by improving contrast and reducing glare. Different colored filters highlight various features; yellow and blue filters are particularly useful. Neutral-density ...

Experiments that reveal the weirdness of the quantum world usually involve precise and highly specialized equipment. But now physicists in Switzerland and the UK have proposed a way of using human ...

Polarizing filters are an integral part of photography. It can increase contrast and color saturation simply by reducing the reflections coming from shiny surfaces. As a result, things tend to look ...