Greensboro vs Sun

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Greensboro ( (listen); formerly Greensborough) is a city in and the county seat of Guilford County, North Carolina, United States. It is the third-most populous city in North Carolina, the 68th-most populous city in the United States, and the largest city in the Piedmont Triad metropolitan region. At the 2010 United States Census the city population was 269,666. In 2019, the estimated population was 296,710. Three major interstate highways (Interstate 40, Interstate 85, and Interstate 73) in the Piedmont region of central North Carolina were built to intersect at this city. In 1808, "Greensborough" (the spelling before 1895) was planned around a central courthouse square to succeed Guilford Court House as the county seat. The county courts were thus placed closer to the geographical center of the county, a location more easily reached at the time by the majority of the county's citizens, who depended on horse and foot for travel. In 2003, the previous Greensboro – Winston-Salem – High Point metropolitan statistical area (MSA) was re-defined by the U.S. Office of Management and Budget. This region was separated into the Greensboro–High Point MSA and the Winston-Salem MSA. The 2010 population for the Greensboro–High Point MSA was 723,801.

The combined statistical area (CSA) of Greensboro–Winston-Salem–High Point, popularly referred to as the Piedmont Triad, had a population of 1,599,477. Among Greensboro's many notable attractions, some of the most popular include the Wet 'n Wild Emerald Pointe water park, the Greensboro Science Center, the International Civil Rights Museum, the Weatherspoon Art Museum, the Greensboro Symphony, the Greensboro Ballet, Triad Stage, the Wyndham Golf Championship, the headquarters of the Atlantic Coast Conference, the Greensboro Coliseum Complex which hosts various sporting events, concerts, and other events. Sports Leagues in Greensboro include the Greensboro Grasshoppers of the South Atlantic Baseball League, the Carolina Dynamo of the Premier Development Soccer League, the Greensboro Swarm of the NBA G League, and the Greensboro Roller Derby. Annual events in Greensboro include the North Carolina Folk Festival, First Fridays in Downtown Greensboro, Fun Fourth of July Festival, North Carolina Comedy Festival and Winter Wonderlights. From 2015-2017 Greensboro, North Carolina was host to the National Folk Festival. The Greensboro Convention and Visitors Bureau (GACVB) makes an annual visitors guide showing the city as a destination to visit.

Source: Wikipedia

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The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as light and infrared radiation. It is by far the most important source of energy for life on Earth. Its diameter is about 1.39 million kilometres (864,000 miles), or 109 times that of Earth, and its mass is about 330,000 times that of Earth. It accounts for about 99.86% of the total mass of the Solar System. Roughly three quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon, and iron.The Sun is a G-type main-sequence star (G2V) based on its spectral class. As such, it is informally and not completely accurately referred to as a yellow dwarf (its light is closer to white than yellow). It formed approximately 4.6 billion years ago from the gravitational collapse of matter within a region of a large molecular cloud. Most of this matter gathered in the center, whereas the rest flattened into an orbiting disk that became the Solar System. The central mass became so hot and dense that it eventually initiated nuclear fusion in its core. It is thought that almost all stars form by this process.

In its core the Sun currently fuses about 600 million tons of hydrogen into helium every second, converting 4 million tons of matter into energy every second as a result. This energy, which can take between 10,000 and 170,000 years to escape the core, is the source of the Sun's light and heat. When hydrogen fusion in its core has diminished to the point at which the Sun is no longer in hydrostatic equilibrium, its core will undergo a marked increase in density and temperature while its outer layers expand, eventually transforming the Sun into a red giant. It is calculated that the Sun will become sufficiently large to engulf the current orbits of Mercury and Venus, and render Earth uninhabitable – but not for about five billion years. After this, it will shed its outer layers and become a dense type of cooling star known as a white dwarf, and no longer produce energy by fusion, but still glow and give off heat from its previous fusion. The enormous effect of the Sun on Earth has been recognized since prehistoric times. The Sun has been regarded by some cultures as a deity. The synodic rotation of Earth and its orbit around the Sun are the basis of solar calendars, one of which is the predominant calendar in use today.

Source: Wikipedia