Sun vs Buzău

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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

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The city of Buzău (formerly spelled Buzeu or Buzĕu; Romanian pronunciation: [buˈzəw] (listen)) is the county seat of Buzău County, Romania, in the historical region of Muntenia. It lies near the right bank of the Buzău River, between the south-eastern curvature of the Carpathian Mountains and the lowlands of Bărăgan Plain. Buzău is a railway hub in south-eastern Romania, where railways that link Bucharest to Moldavia and Transylvania to the Black Sea coast meet. DN2, a segment of European route E85 crosses the city. Buzău's proximity to trade routes helped it develop its role as a commerce hub in older days, and as an industrial centre during the 20th century. During the Middle Ages, Buzău was a market town and Eastern Orthodox episcopal see in Wallachia. It faced a period of repeated destruction during the 17th and 18th centuries, nowadays symbolized on the city seal by the Phoenix bird. In the 19th century, after the end of that era, the city began to recover. The economy underwent industrialization, Buzău became a railway hub, and public education became available.

At this time, the Communal Palace, the city's landmark building, and Crâng Park, the main recreational area, were built. The communist regime after World War II brought forced industrialization and the tripling of the city's population. Some of the factories open at the time are still functioning within the framework of market economy. There are no universities based in Buzău, and only a few universities from other cities have remote learning facilities here. The main educational institutions here are B.P. Hasdeu high-school (where Nobel laureate George Emil Palade studied) and Mihai Eminescu high-school. The city has a number of other secondary schools, in addition to elementary schools. The Vasile Voiculescu County Library and Buzău County Museum are based in the city. The latter also manages an ethnography exhibit in the city, as well as the Vasile Voiculescu memorial house in Pârscov and the amber exhibit at Colți.

Source: Wikipedia