1st object successful orbital launch was of the Soviet uncrewed Sputnik 1 mission on Oct 1957. The satellite weighed about 83 kg, and is believed to have orbited Earth at a height of about 250 km . It had 2 radio transmitters, which emitted "beeps" that could be heard by radios.
Look, this is the health trail I took in Xiamen. Connecting the ocean, forest, and city, with a length of 54km.
You will depart from the seaside, pass through many small hills, Lakes, grasslands, forests and arrive at the seaside on the other side.
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The Lanzhou–Haikou Expressway, designated as G75 and commonly referred to as the Lanhai Expressway, is an expressway in China that connects the cities of Lanzhou, Gansu, and Haikou, Hainan. When fully complete, it will be 2,570 km in length.
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