Photoshop tutorial showing how to make natural-looking sunbeams filtering through forest trees. ‘We are looking at a massive crisis’ Men’s lazy habit fueling millennial "dating crisis" revealed 4th ...

A laser is usually constructed from two basic elements: a material that provides optical gain through stimulated emission and an optical cavity that partially traps the light. When the total gain in ...

The Sundarbans mangrove forest, one of the largest such forests in the world (140,000 ha), lies on the delta of the Ganges, Brahmaputra and Meghna rivers on the Bay of Bengal. It is adjacent to the ...