Sun vs Haifa

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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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Haifa (Hebrew: חֵיפָה‎ Ḥefa [χeˈfa]; Arabic: حيفا‎ Ḥayfa) is the third-largest city in Israel – after Jerusalem and Tel Aviv – with a population of 285,316 in 2019. The city of Haifa forms part of the Haifa metropolitan area, the second- or third-most populous metropolitan area in Israel. It is home to the Baháʼí Faith's Baháʼí World Centre, and is a UNESCO World Heritage Site and a destination for Baháʼí pilgrimage.Built on the slopes of Mount Carmel, the settlement has a history spanning more than 3,000 years. The earliest known settlement in the vicinity was Tell Abu Hawam, a small port city established in the Late Bronze Age (14th century BCE). In the 3rd century CE, Haifa was known as a dye-making center. Over the millennia, the Haifa area has changed hands: being conquered and ruled by the Canaanites, Israelites, Phoenicians, Persians, Hasmoneans, Romans, Byzantines, Arabs, Crusaders, Ottomans, and the British.

Since the establishment of the Israeli state in 1948, the Haifa Municipality has governed the city. As of 2016, the city is a major seaport located on Israel's Mediterranean coastline in the Bay of Haifa covering 63.7 square kilometres (24.6 sq mi). It lies about 90 kilometres (56 mi) north of Tel Aviv and is the major regional center of northern Israel. Two respected academic institutions, the University of Haifa and the Technion, are located in Haifa, in addition to the largest K–12 school in Israel, the Hebrew Reali School. The city plays an important role in Israel's economy. It is home to Matam, one of the oldest and largest high-tech parks in the country; Haifa also owns the only underground rapid transit system located in Israel, known as the Carmelit. Haifa Bay is a center of heavy industry, petroleum refining and chemical processing. Haifa formerly functioned as the western terminus of an oil pipeline from Iraq via Jordan.

Source: Wikipedia