![]() It subsequently became a major center of Islamic culture and learning, with its art, literature, philosophy, and architecture spreading across the Muslim world and beyond during the Islamic Golden Age. Arab Muslims conquered the empire in the seventh century AD, which led to the Islamization of Iran. An Iranian rebellion established the Parthian Empire in the third century BC, which was succeeded in the third century AD by the Sassanid Empire, a major world power for the next four centuries. The Achaemenid Empire fell to Alexander the Great in the fourth century BC and was subsequently divided into several Hellenistic states. It was first unified by the Medes, an ancient Iranian people, in the seventh century BC, and reached its territorial height in the sixth century BC, when Cyrus the Great founded the Achaemenid Persian Empire, which became one of the largest empires in history and a superpower. The country is home to one of the world's oldest civilizations, beginning with the formation of the Elamite kingdoms in the fourth millennium BC. Its largest cities, in descending order, are the capital Tehran, Mashhad, Isfahan, Karaj, Shiraz, and Tabriz. Iran has a population of 86 million, making it the 17th-most populous country in the world, and the second-largest in the Middle East. It covers an area of 1,648,195 km 2 (636,372 sq mi), making it the fourth-largest country entirely in Asia and the second-largest country in Western Asia behind Saudi Arabia. ![]() It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmenistan to the north, by Afghanistan and Pakistan to the east, and by the Gulf of Oman and the Persian Gulf to the south. Iran, officially the Islamic Republic of Iran and also called Persia, is a country in Western Asia. What kinds of things do the instruments on a weather balloon measure?Īn instrument called a radiosonde is attached to the balloon to measure pressure temperature and relative humidity as it ascends up into the atmosphere.You may need rendering support to display the Persian text in this article correctly. … Contraction and expansion of the hair element in a mechanical hygrometer causes the spring to move the needle on the dial. Several major types of hygrometers are used to measure humidity. Hygrometer instrument used in meteorological science to measure the humidity or amount of water vapour in the air. What is a hygrometer used for in weather? The weather measures are formatted in special format and transmit to WMO to help the weather forecast model. The common instruments of measure are anemometer wind vane pressure sensor thermometer hygrometer and rain gauge. ![]() What is a Stevenson screen and how does it work?Ī Stevenson screen (also known as an instrument shelter) is a meteorological screen to shield instruments against precipitation and direct heat radiation from outside sources while still allowing air to circulate freely around them. Either place the mixture in a corked test tube or seal it within glass.Add the potassium nitrate and ammonium chloride solution to the camphor solution.Dissolve the potassium nitrate and ammonium chloride in the water. ![]() Keep in mind that you should be in a safe place while counting. If you count the number of seconds between the flash of lightning and the sound of thunder and then divide by 5 you’ll get the distance in miles to the lightning: 5 seconds = 1 mile 15 seconds = 3 miles 0 seconds = very close. Anemometers are important tools for meteorologists who study weather patterns.How are thunderstorms measured? What weather instrument measures wind?Īn anemometer is an instrument that measures wind speed and wind pressure. These days temperatures are also taken by satellites to reduce the possibility of false high readings due to heat in cities. Thermometers and rain gauges are used to collect weather data. A thermometer measures the degree of hotness or coldness of a given substance. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |