To make the Moon look so large in the background, photographers need to use superzoom telephoto lenses of at least 1,000mm ...

Red, orange, yellow, green, blue, indigo and violet have been commonly known as ROYGBIV for years, an unwavering rainbow fact.

The implementations of an orange and a red light-emitting diode (LED), which are fabricated with a prestrained InGaN-GaN quantum-well (QW) epitaxy structure, are demonstrated. The prestrain condition ...