As showing how far under favourable conditions the reflection of light from a cloudy sky is visible, I may perhaps be allowed to mention that last night at nine o'clock the reflection of the London ...

Fog, twilight, and night create reduced spaces in which shapes, lines, and contrasts are particularly effective. Many of the ...

Researchers demonstrate a new technique for suppressing back reflections of light, leading to better signal quality for sensing and information technology. Microresonators are small glass structures ...