Decoration (noun). specifically, any mark of honor to be worn upon the person, as a medal, cross, or ribbon of an order of knighthood, bestowed for services in war, great achievements in literature, art, etc. Origin: [LL. decoratio: cf.
A P-N junction (or N-P junction) is formed by creating two substrate materials of P type and N type on a semiconductor. P type means it is doped with free holes (electron depletion) and the N type is doped with electrons. Of course by physics, the free holes and free electrons would like to neutralize each other.
The popluar and versatile 280 class FPV racer with 6 propellers. The Storm Type-A racing drone has evolved to version 3, upgraded with the latest electronics and 15% lighter weight for better performance. Designed by professional FPV racers, the Type-A frame is a classic design with replaceable 4mm carbon fiber arms and 1.5mm main frames, all-up-weight is 417 g only (without battery).