As of the census of 2000, there were 92,554 people, 35,538 households, and 24,111 families residing in the city. The population density was 3,68...
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 several notable events
Foothill Ranch is a city located in San Diego County, California. It has a population of 106,373 according to the 2010 census. The city is located 25 miles northeast of Downtown San Diego, near the intersection of I-15 and US-101. It occupies the eastern slopes of the Serrano Mountains. It is part of the Central San Diego metropolitan area.
Foothills Ranch is known for its mild winters, clean air, nationally recognized schools, and its gourmet restaurants.
Foothills Ranch was established in 1945 as a community of post-war retirees, and was originally known as Sunset Hills. The city's name was changed in 1951 to reflect its location in the Foothills, as opposed to the Hills in Sunset Hills. Foothill Ranch has a flat topography and is bounded by the San Diego River to the west, the I-15 freeway to the north, Sunrise Highway to the east, and Citadel Road to the south.
According to the United States Census Bureau, the city has a total area of , of which is land and , or 2.66%, is water.
The Kumeyaay people were the original inhabitants of the Foothills region. In 1769, the San Dieguito Mission was founded on the banks of the San Dieguito River in what is now Foothill Ranch. The mission was established by Franciscan friars, who were subsequently replaced by the Franciscan Sisters of the Sacred Heart in 1874. A year later, the first school in Foothill Ranch opened.
Foothill Ranch is located in the eastern slopes of the Serrano Mountains, home to a wide variety of plant and animal life. The city is also known for its mild winters, clean air and nationally recognized schools, including Serra Mesa Academy, Serra High School, and Rancho Bernardo High School.
Notable events in Foothill Ranch include the annual Foothills Ranch Parade and a fireworks display on New Year's Eve. The city is also home to the Foothills Ranch Promenade, a 2.5-mile stretch of open trails along the San Diego River.
As of the census of 2000, there were 92,554 people, 35,538 households, and 24,111 families residing in the city. The population density was 3,688.4 people per square mile (1,449.8/km²). There were 37,777 housing units at an average density of 1,524.5 per square mile (582.4/km²). The racial makeup of the city was 73.81% White, 7.64% African American, 1.36% Native American, 6.15% Asian, 0.04% Pacific Islander, 8.82% from other races, and 2.72% from two or more races. Hispanic or
}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.