Question: What is the third busiest airport in the country where the person who was able to describe the process of evaporation was in?

<P0-S0> In 2017, Guangzhou Baiyun International Airport was China's third-busiest and world's 13th-busiest airport by passenger traffic, with 65,806,977 passengers handled. <P0-S1> As for cargo traffic, the airport was China's third-busiest and the 19th-busiest worldwide. <P0-S2> Baiyun airport was also the third-busiest airport in China in terms of aircraft movements. <SEP> <P1-S0> Wang Chong (; 27 – c. 100 AD), courtesy name Zhongren (仲任), was a Chinese meteorologist, astronomer, and philosopher active during the Han Dynasty. <P1-S1> He developed a rational, secular, naturalistic and mechanistic account of the world and of human beings and gave a materialistic explanation of the origin of the universe. <P1-S2> His main work was the "Lunheng" (論衡, "Critical Essays"). <P1-S3> This book contained many theories involving early sciences of astronomy and meteorology, and Wang Chong was even the first in Chinese history to mention the use of the square-pallet chain pump, which became common in irrigation and public works in China thereafter. <P1-S4> Wang also accurately described the process of the water cycle. <SEP> <P2-S0> london is a major international air transport hub with the busiest city airspace in the world. <P2-S1> eight airports use the word london in their name, but most traffic passes through six of these. <P2-S2> london heathrow airport, in hillingdon, west london, is the busiest airport in the world for international traffic, and is the major hub of the nation's flag carrier, british airways. <P2-S3> in march 2008 its fifth terminal was opened. <P2-S4> there were plans for a third runway and a sixth terminal; however, these were cancelled by the coalition government on 12 may 2010. <SEP> <P3-S0> miami international airport and portmiami are among the nation's busiest ports of entry, especially for cargo from south america and the caribbean. <P3-S1> the port of miami is the world's busiest cruise port, and mia is the busiest airport in florida, and the largest gateway between the united states and latin america. <P3-S2> additionally, the city has the largest concentration of international banks in the country, primarily along brickell avenue in brickell, miami's financial district. <P3-S3> due to its strength in international business, finance and trade, many international banks have offices in downtown such as espírito santo financial group, which has its u.s. headquarters in miami. <P3-S4> miami was also the host city of the 2003 free trade area of the americas negotiations, and is one of the leading candidates to become the trading bloc's headquarters. <SEP> <P4-S0> Han-era astronomers adopted a geocentric model of the universe, theorizing that it was shaped like a sphere surrounding the earth in the center. <P4-S1> They assumed that the Sun, Moon, and planets were spherical and not disc-shaped. <P4-S2> They also thought that the illumination of the Moon and planets was caused by sunlight, that lunar eclipses occurred when the Earth obstructed sunlight falling onto the Moon, and that a solar eclipse occurred when the Moon obstructed sunlight from reaching the Earth. <P4-S3> Although others disagreed with his model, Wang Chong accurately described the water cycle of the evaporation of water into clouds.