The median income for a household in the city was $52,111, and the median income for a family was $61,649. Males had a median income of $41,663...
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!
, and some of the notable landmarks.
Arvada is a city located in Jefferson County, Colorado, United States. The population was 193,523 at the 2010 census. It is the fourth most populous city in Colorado.
Arvada is located at 39° 49′ 9″N 105° 4′ 2″W. It is bordered by Adams County to the northeast and east, Commerce City to the south and southwest, Lakewood to the west, and the northwestern portion of Thornton lies within the city limits.
According to the United States Census Bureau, Arvada has a total area of , of which , or 0.50%, is water.
As of the census of 2000, there were 145,149 people, 56,728 households, and 33,541 families residing in the city. The population density was 2,622.8 inhabitants per square mile (1,041.2/km²). There were 59,694 housing units at an average density of 1,043.4 per square mile (400.3/km²). The racial makeup of the city was 77.98% White, 1.54% African American, 0.13% Native American, 14.52% Asian, 0.01% Pacific Islander, 2.68% from other races, and 2.01% from two or more races. Hispanic or Latino of any race were 5.94% of the population.
There were 56,728 households out of which 31.5% had children under the age of 18 living with them, 49.9% were married couples living together, 10.2% had a female householder with no husband present, and 33.5% were non-families. 26.5% of all households were made up of individuals and 7.5% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.00.
In the city, the population was spread out with 24.9% under the age of 18, 8.4% from 18 to 24, 31.4% from 25 to 44, 24.4% from 45 to 64, and 12.7% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 92.6 males. For every 100 females age 18 and over, there were 88.4 males.
The median income for a household in the city was $52,111, and the median income for a family was $61,649. Males had a median income of $41,663 versus $30,317 for females. The per capita income for the city was $23,055. About 4.5% of families and 5.9% of the population were below the poverty line, including 9.1% of those under age 18 and 6.
}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.