The light-emitting semiconductor material determines the LED's color, so the number of colors is infinite. As indicated by its full name â Light Emitting Diode â an LED is a diode that emits light. A diode is a device that allows current to flow in only one direction. Almost any two conductive materials will form a diode when placed in contact with each other â with a single p-n semiconductor junction between them.
For other uses, see Texas Longhorn (disambiguation) and Longhorn (disambiguation). The Texas Longhorn is a breed of cattle known for its characteristic horns, which can extend to over 1.8 m (5.9 ft) tip to tip for bulls, and 2.1 m (6.9 ft) tip to tip for steers and exceptional cows.
The Old Texas Ranches and Ranchers. The old famous ranches of Texas include the massive XIT Ranch in the Texas Panhandle. The massive King Ranch in southeast Texas, south of present day Corpus Christie, the Waggoner Ranch which was in northern Texas near the Oklahoma border and the JA Ranch in the Palo Duro Canyon area south of present day Amarillo.