Notable attractions in Scranton include Lackawanna County Courthouse, George Washington Carver National Monument, the USS Scranton (SSN 743), th...
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!
Scranton, Pennsylvania, located in the northeast corner of the Commonwealth, is the ninth largest city in Pennsylvania and the sixth largest city in the Northeast. With a total population of 152,287, it is the largest city in Lackawanna County and the second largest city in the Wyoming Valley. The city is served by the Scranton/Wilkes-Barre Airport and the Interstate 78/79 corridor.
The city lies at the intersections of the Wyoming and Susquehanna rivers, and is bordered by the boroughs of Wilkes-Barre,ELMWOOD PARK, Dunmore, and Hazleton to the northwest, Fairless Hills and Monroe Township to the north, east and southeast, respectively, and West Scranton to the south.
The city's location near the geographic center of Pennsylvania gives it a moderate climate with four distinct seasons. The city is protected from the worst weather by the Pocono Mountains to the east and the Lackawanna River to the north.
Notable attractions in the city include Lackawanna County Courthouse, George Washington Carver National Monument, the USS Scranton (SSN 743), the Market-Frankfort Theatre and the Spectrum Theatre.
Located in the northeast corner of Pennsylvania, Scranton is bounded by the Wyoming and Susquehanna rivers to the north and east, Fairless Hills and Monroe Township to the south, and West Scranton to the south. The city limits stretch into ELMWOOD PARK and Wilkes-Barre borough to the northwest, Dunmore Borough to the north, Hazleton Borough to the northeast, and Lackawanna County to the southeast.
Surface elevations range from above sea level at the Wyoming River to above sea level near the city's southern border. The city is within the Pocono Mountain escarpment.
The city rests on the coal and iron-rich Lackawanna Formation, which underlies most of Pennsylvania. The city's significant natural resources include coal, natural gas, oil, uranium, phosphates, potash, limestone, and clay.
Scranton has a humid subtropical climate, with four distinct seasons. The winters are cold and the summers are hot, but the city is well-protected from the worst weather by the Pocono Mountains to the east and the Lackawanna River to the north. The city has an average of 47.9 inches of precipitation annually, with most falls in the winter.
Notable attractions in Scranton include Lackawanna County Courthouse, George Washington Carver National Monument, the USS Scranton (SSN 743), the Market-Frankfort Theatre and the Spectrum Theatre.
}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.