The median income for a household in the city was $48,108, and the median income for a family was $60,128. Males had a median income of $41,469...
Sunset
Twilight
Darkness
Most people know that sunset is the time when the sun goes down. But did you know that the sun doesn't actually set? Instead, Earth rotates into darkness, giving us the illusion that the sun is setting. So what causes sunset?
Well, it's a combination of things. The Earth's atmosphere scatters sunlight in every direction, but blue and violet light are scattered more than other colors. This is why the sky is usually blue during the daytime. As the sun gets lower in the sky, the atmosphere becomes thicker and more dense.
This scattering of sunlight happens to a greater extent, and we see red and orange light more than blue and violet light. That's why sunset is usually a beautiful red or orange color. So next time you see sunset, remember that you're actually seeing Earth rotate into darkness!
Robertsdale is a city located in Houston County, Alabama, in the southeastern United States. The population was 8,781 at the 2010 census. It is the principal city of the Robertsdale Micropolitan Statistical Area, and was incorporated on February 9, 1901. The city is named for David Roberts, a wealthy steamboat captain in the early 19th century. Robertsdale is located at 30°12′N 86°24′W. It is bordered to the north by the town of Huntsville, to the south by the town of Madison, to the east by the town of Decatur, and to the west by the city of Gulf Shores. As of the census of 2010, there were 8,781 people, 3,883 households, and 2,503 families residing in the city. The population density was 345.4 people per square mile (133.7/km²). There were 4,215 housing units at an average density of 153.6 per square mile (57.9/km²). The racial makeup of the city was 79.4% White, 10.4% Black or African American, 0.1% Native American, 3.8% Asian, 0.0% Pacific Islander, 2.8% from other races, and 2.1% from two or more races. 5.7% of the population were Hispanic or Latino of any race.
The median income for a household in the city was $48,108, and the median income for a family was $60,128. Males had a median income of $41,469 versus $32,926 for females. The per capita income for the city was $25,864. About 5.8% of families and 10.1% of the population were below the poverty line, including 14.1% of those under age 18 and 5.4% of those age 65 or over. Robertsdale is located in southeastern Alabama, just north of the Florida Panhandle. The city is surrounded largely by water: the Alabama River forms the eastern border, Wheeler Lake lies to the northeast, Lake Whittey to the northwest, Black Warrior River to the west, and the Gulf of Mexico forms the southern border. The climate in Robertsdale is humid subtropical, with mild winters and hot, humid summers. The closest states are Florida and Mississippi, the closest capitals are Montgomery and Jackson, and the most notable feature of Robertsdale is Wheeler Lake, located in the city center. Robertsdale is home to the Wheeler Lake Visitor's Center, which features a museum, a pavilion, and a ranger station.
}As the sun sets, the sky slowly grows dark. For many people, this is a time to relax and wind down for the day. But have you ever wondered exactly when it gets dark? The answer may surprise you.
Did you know that darkness actually begins long before the sun sets? As the sun gets lower in the sky, its light has to travel through more atmosphere. This filters out some of the blue light, making the sun look redder. At the same time, shadows get longer and darker. So by the time the sun finally dips below the horizon, darkness has already begun to fall.
Of course, not all places on Earth experience darkness at the same time. Near the equator, the sun sets and rises almost directly overhead. This means that there is less of a difference between daytime and nighttime. Closer to the poles, however, the sun stays low in the sky for much of the year. This leads to longer periods of darkness during wintertime.