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.
Hecto or hecta is a decimal unit prefix in the metric system denoting a factor of one hundred. It was adopted as a multiplier in 1795, and comes from the Greek á¼ÎºÎ±ÏÏÎ½ hekaton, meaning hundred. Based on a proposal by Thomas Young, the prefix was often alternatively spelled hecato-in early 19th century sources. Its unit symbol as an SI prefix in the International System of Units (SI) is the lower case letter h.