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1 godzinę temu · In the first century AD, Ptolemy estimated the distance as 1,210 times the radius of Earth, approximately 7.71 million kilometers (0.0515 AU). [169] The theory that the Sun is the center around which the planets orbit was first proposed by the ancient Greek Aristarchus of Samos in the third century BC, [170] and later adopted by Seleucus of ...
1 dzień temu · Chicago O'Hare International Airport (IATA: ORD, ICAO: KORD, FAA LID: ORD) is a major international airport serving Chicago, Illinois, United States, located on the city's Northwest Side, approximately 17 miles (27 km) northwest of the Loop business district. Operated by the Chicago Department of Aviation and covering 7,627 acres (3,087 ha), O'Hare has non-stop flights to 214 destinations in ...
1 dzień temu · John F. Kennedy International Airport (IATA: JFK, ICAO: KJFK, FAA LID: JFK) is a major international airport serving New York City and its metropolitan area, in the state of New York, United States.The airport is the busiest of the seven airports in the New York airport system, the 6th-busiest airport in the United States, and the busiest international air passenger gateway into North America.
