Our index of selected Electrical and Electronic Engineering articles. Pages: 1 | 2 | 3 | Next >. From: Circuit World, volume: 37 issue: 3, 2011. High-density interconnect (HDI) continues to be the fastest growing segment of the printed circuit board (PCB) market.
Color Green - Verde!!! Green is the prime color of the world, and that from which its loveliness arises. -- Pedro Calderon de la Barca.
Vegetable dyestuff indigo. was the more common blue. Natural ultramarine (the mineral lazarite). was also used. Vermilion (mercuric sulphide) and red lead were the most. common reds. Many greens were used. The most common was verdigris, copper chloride produced by the reaction of copper metal with salt. water. Metallic pigments were also used, including gold in painted. powder form, and a tin metal that was silver in color.