Sun vs Skopje

Informations

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

Informations

Skopje ( SKOP-yee, -⁠yay, US also SKOHP-; Macedonian: Скопје [ˈskɔpjɛ] (listen); Albanian: Shkup) is the capital and largest city of North Macedonia. It is the country's political, cultural, economic, and academic centre. The territory of Skopje has been inhabited since at least 4000 BC; remains of Neolithic settlements have been found within the old Kale Fortress that overlooks the modern city centre. Originally a Paeonian city, Scupi became the capital of Dardania in the second century BC. On the eve of the 1st century AD, the settlement was seized by the Romans and became a military camp. When the Roman Empire was divided into eastern and western halves in 395 AD, Scupi came under Byzantine rule from Constantinople. During much of the early medieval period, the town was contested between the Byzantines and the Bulgarian Empire, whose capital it was between 972 and 992. From 1282, the town was part of the Serbian Empire, and acted as its capital city from 1346 to 1371. In 1392, Skopje was conquered by the Ottoman Turks, who called it Üsküb, with this name also being in use in English for a time. The town stayed under Ottoman control for over 500 years, serving as the capital of pashasanjak of Üsküp and later the Vilayet of Kosovo. In 1912, it was annexed by the Kingdom of Serbia during the Balkan Wars.

During the First World War the city was seized by the Kingdom of Bulgaria, and, after the war, it became part of the newly formed Kingdom of Yugoslavia as the capital of Vardarska Banovina. In the Second World War the city was again captured by Bulgaria and in 1944 became the capital of SR Macedonia, a federated state within the Yugoslavia. The city developed rapidly, but this trend was interrupted in 1963 when it was hit by a disastrous earthquake. Skopje is located on the upper course of the Vardar River, and is located on a major north–south Balkan route between Belgrade and Athens. It is a centre for metal-processing, chemical, timber, textile, leather, and printing industries. Industrial development of the city has been accompanied by development of the trade, logistics, and banking sectors, as well as an emphasis on the fields of transportation, culture and sport. According to the last official count from 2002, Skopje had a population of 428,988 inhabitants in its urban area and 506,926 in ten municipalities that form the city and, beside Skopje, include many other less urbanized and rural settlements some of which are located 20 kilometres away from the city itself or even border the neighbouring Kosovo.

Source: Wikipedia