Bee consistency. Some solitary bees have advanced types of pollen-carrying structures on their bodies. A very few species of solitary bees are being cultured for commercial pollination. Most of these species belong to a distinct set of genera which are commonly known by their nesting behavior or preferences, namely: carpenter bees, sweat bees, mason bees, plasterer bees, squash bees, dwarf carpenter bees, leafcutter bees, alkali bees and digger bees. Most solitary bees nest in the ground in a variety of soil textures and conditions while others create nests in hollow reeds or twigs, holes in wood. The female typically creates a
Digger gold Digger gold Digger gold is the common slang term for gold recovered from electronics components such as board fingers, CPUs, and connector pins. For the gold fingers on boards or circuits, often a stripping solution is used to remove the gold from the board material; nitric acid also works well in this regard as many gold components are soldered to boards with silver-based solders that are soluble in nitric acid (which gold is not). After dissolving all other metals in solution, the digger gold is recovered by dissolution of the gold in aqua regia and subsequent selective precipitation of the