Crowville, Iowa is a small town located in Hamilton County, Iowa, about 55 miles northwest of Des Moines. The population was 1,521 at the 2000 c...
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!
Crowville, Iowa is a small town located in Hamilton County, Iowa, about 55 miles northwest of Des Moines. The population was 1,521 at the 2000 census. Crowville is located at 41°43′53″N 95°1′2″W. According to the United States Census Bureau, the city has a total area of 0.7 square miles (1.8 km²), all of it land. Crowville is located in the NW Iowa hilly country. Spring and autumn are the best times to visit Crowville. Summers can be hot and humid, while the winter months can be cold and blustery. Crowville is located in the southwest corner of Iowa. It is bordered by Van Meter to the north, New Sharon to the east, Liberty to the south, and Blanchardt to the west. Crowville is located in the northeast corner of Iowa. It is bordered by Mitchell to the north, Webster City to the east, Mason City to the south, and Kansas City to the west. The nearest state capital is Des Moines, Iowa, which is about 20 miles to the east. Crowville is located in the center of Iowa. The nearest major city is Omaha, Nebraska, which is about 100 miles to the north. The population of Crowville was 1,521 as of the 2000 census. The population density was 439 people per square mile (175/km²). The racial makeup of the city was 98.53% White, 0.11% from other races, and 1.12% from two or more races. Hispanic or Latino of any race were 1.07% of the population. There were 246 households out of which 31.60% had children under the age of 18 living with them, 50.80% were married couples living together, 9.30% had a female householder with no husband present, and 33.90% were non-families. 28.60% of all households were made up of individuals and 12.00% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.00. In the city, the population was spread out with 26.90% under the age of 18, 10.20% from 18 to 24, 29.60% from 25 to 44, 22.10% from 45 to 64, and 12.40% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 98.10 males. For every 100 females age 18 and over, there were 96.60 males. The median income for a household in the city was $30,313, and the median income for a family was $36,583. Males had a median income of $30,417 versus $17,658 for females. The per capita income for the
}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.