The median age in the city was 39.1 years. 25.6% of residents were under the age of 18; 7.5% were between the ages of 18 and 24; 26.8% were from...
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!
, demographics, economy, education, healthcare, and culture
Walnutport, Pennsylvania, located in northwest Pennsylvania, is the fifth-largest city in the state. As of the 2013 population estimate, Walnutport had a population of 38,127. The city is part of the Youngstown-Warren-Boardman, OH-PA Metropolitan Statistical Area.
Walnutport is a regional center for commerce, services, and manufacturing. Industry in the city includes food production, printing and publishing, personal and commercial transportation, medical and healthcare, engineering, and construction. The city also has a significant presence in education, with several colleges and universities located in Walnutport.
The city is located at the confluence of the Allegheny and Monongahela rivers. Walnutport is bordered by Morgantown to the northeast, Butler to the southeast, Muncy to the south, Plainfield to the southwest, and the borough of Chartiers to the west.
According to the United States Census Bureau, the city has a total area of , of which is land and is water.
As of the census of 2010, there were 37,524 people, 11,727 households, and 10,131 families residing in the city. The population density was 2,393.4 people per square mile (946.4/km²). There were 12,151 housing units at an average density of 722.1 per square mile (280.8/km²). The racial makeup of the city was 89.5% White, 5.5% African American, 0.2% Native American, 2.5% Asian, 0.0% Pacific Islander, 1.8% from other races, and 1.5% from two or more races. Hispanic or Latino of any race were 4.2% of the population.
There were 11,727 households of which 34.1% had children under the age of 18 living with them, 49.5% were married couples living together, 11.4% had a female householder with no husband present, 4.4% had a male householder with no wife present, and 35.9% were non-families. 30.2% of all households were made up of individuals and 11.1% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 3.06.
The median age in the city was 39.1 years. 25.6% of residents were under the age of 18; 7.5% were between the ages of 18 and 24; 26.8% were from 25 to 44; 26.4% were from 45 to 64; and 13.4% were 65 years of age or older. The gender makeup of the city was 47.2% male and 52.8% female.
}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.