The attractions in Foster City include the Bayview Heights Community Park, the Chabot Space and Science Center, the Foster City Library, the Fos...
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!
Foster City is located in eastern San Mateo County, California, on the eastern shore of San Francisco Bay. The eastern area of the city, which has a slightly lower population density, is sometimes referred to as East Foster City or East Bay Foster City. The city is named after civil engineer John W. Foster, who founded the city in 1898. Its total area is just over 30 square miles.
The city of Foster City has a population of approximately 115,000 as of the 2010 census. The rural eastern area of the city has a population of approximately 10,000 less. The eastern area contains large portions of the San Francisco Bay National Wildlife Refuge.
Foster City is located north of downtown San Francisco at the eastern edge of the Bay Area, adjacent to Redwood City and east of the City of Fremont. The city is laid out in a square with a total area of 29.7 square miles (75.1 km²). Most of the city is located on the eastern banks of the San Francisco Bay.
According to the United States Census Bureau, the city has a total area of 29.7 square miles (75.1 km²), of which, 29.6 square miles (74.9 km²) of it is land and 0.1 square miles (0.2 km²) of it (0.32%) is water.
The city is bordered by the cities of Redwood City to the south and west, Newark to the north, Union City to the east and south, and San Carlos to the southwest. The total area of these five cities is 73.4 square miles (193.5 km²). The population density of Foster City is about 16,000 people per square mile (6,000/km²).
The nearest state capital is Sacramento, 50 miles (80 km) to the south. The nearest large city is San Francisco, 131 miles (211 km) to the south.
The weather in Foster City is mild year-round with average highs in the low 50s° F (10°C) and lows in the low 20s° F (-6°C). On average, there are 33.1 days with highs of at least 65° F (18°C) and 9.7 days with lows of at least 30° F (-1°C). The average annual precipitation falls about 56 inches (1,400 mm).
The eastern area of the city, which has a slightly lower population density, is sometimes referred to as East Foster City or East Bay Foster City. The area contains large portions of the San Francisco Bay National Wildlife Refuge.
The attractions in Foster City include the Bayview Heights Community Park, the Chabot Space and Science Center, the Foster City Library, the Foster City Yacht Club, the Foster City Historical Museum, the Foster City Golf Club, the Foster City Marina, and
}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.