In electronics, it is generally standard to use red wire for positive (+) connections and black wire for negative (-) connections. 1  What other colors you use is largely a matter of choice and will depend on the specific circuit you are building. For example, there are a few different ways you could wire this circuit with red, green, blue, and yellow LEDs, but they will all work exactly the same:
Bruno de Heceta (Hezeta) y Dudagoitia was born in Bilboa, Spain, in 1743 to an old Basque family. The Spanish claim to Alaska and the Pacific Northwest had dated back to a 1493 papal bull (Inter caetera) and rights contained in the 1494 Treaty of Tordesillas.
(Read the article on one page) Heikegani is a species of crab native to Japan, with a shell that bears a pattern resembling a human face. According to Japanese folklore, the Heikegani crabs contain the souls of the Heike samurai warriors who were slain at the Battle of Dan-no-ura in 1185 AD, a war over the Japanese imperial throne.