The closest states and capitals are Illinois to the northwest, Missouri to the west, Iowa to the south, and Minnesota to the east. The Universit...
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!
Grinnell, Iowa is located in central Iowa near the cities of Iowa City and Des Moines. As of the 2010 census, the city had a population of 20,797. Grinnell is the county seat of Polk County. The city is located on the east bank of the Mississippi River and is home to the University of Iowa Hawkeyes.
Grinnell has a warm-summer continental climate (Köppen "Dfa"), with hot, humid summers and cold, dry winters. According to the National Weather Service, the average total annual rainfall for Grinnell is 34.2 inches, and the average annual snowfall is 19.9 inches.
The closest states and capitals are Illinois to the northwest, Missouri to the west, Iowa to the south, and Minnesota to the east. The University of Iowa is in the city of Iowa City, about 10 miles north of Grinnell.
}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.