Reading is home to a number of colleges and universities, including Lehigh University, Rowan University, and Temple University. The city's econo...
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!
, population and demographics, education, economy, and more
Reading, Pennsylvania is located in west-central Pennsylvania, about halfway between Philadelphia and Pittsburgh. The city has a population of about 71,000 and is the county seat of Berks County. The city is located at the confluence of the Lehigh and Schuylkill Rivers and is part of the Reading metropolitan area, which has a population of about 237,000.
Reading is located in the LEhighvalley area, which is a transition area between the eastern hardwood and pine-covered Appalachian Mountains and the more rolling Pennsylvania countryside. The city experiences a moderate climate, with hot and humid summers and cold, dry winters. The nearest states are Pennsylvania to the south, New Jersey to the west, and New York to the northeast. The capital of Pennsylvania, Harrisburg, is about 120 miles southeast of Reading.
Reading is home to a number of colleges and universities, including Lehigh University, Rowan University, and Temple University. The city's economy is based on a variety of industries, including health care, manufacturing, and retail. Reading is also home to the Berks County Court House and the Reading Terminal Market, both of which are designated UNESCO World Heritage Sites.
}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.