In the city, the population was spread out, with 21.4% under the age of 18, 7
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!
Wellsburg, in Allegheny County, Pennsylvania, is a northeastern suburb of Pittsburgh. The city contains many historic neighborhoods, including the Allegheny West End and the Allegheny Silicon Valley.
Wellsburg is located at 40°59′19″N 79°00′50″W. According to the United States Census Bureau, the city has a total area of , of which is land and is water.
Wellsburg is bordered to the northeast by the Allegheny Mountains, to the east by the Monongahela River, to the south by the Jordan Creek watershed, and to the west by the Allegheny Transition Area.
Temperatures range from a high of 95 °F in July to a low of 32 °F in January. Precipitation ranges from 11 inches (280 mm) in September to 3 inches (76 mm) in May.
Wellsburg is governed by a city council/manager form of government. The mayor and six council members are elected at-large to serve four-year terms. The council also employs a city manager who is responsible for the day-to-day operation of the city. As of 2016, the mayor is D. Todd Osher, and the city manager is Glenn Fowler.
Wellsburg is served by the Wellsburg School District and is home to the Wellsburg High School Tigers.
Wellsburg is also home to the Wellsburg Patriots, a developmental ice hockey team in the Pennsylvania Adult Hockey Association.
As of the census of 2000, there were 16,002 people, 7,913 households, and 4,878 families residing in the city. The population density was 2,434.8 people per square mile (964.9/km²). There were 8,182 housing units at an average density of 1,052.1 per square mile (405.3/km²). The racial makeup of the city was 96.30% White, 0.22% African American, 0.68% Asian, 0.03% Native American, 0.52% from other races, and 1.48% from two or more races. Hispanic or Latino of any race were 1.48% of the population.
There were 7,913 households, out of which 26.6% had children under the age of 18 living with them, 50.9% were married couples living together, 10.3% had a female householder with no husband present, and 34.2% were non-families. 28.7% of all households were made up of individuals, and 14.6% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.99.
In the city, the population was spread out, with 21.4% under the age of 18, 7
}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.