Atmospheric Pressure vs. Elevation above Sea Level
Oldest surviving aerial photograph. Boston taken from a balloon 2000 feet (610 meters) in the air in 1860. : r/interestingasfuck
Cacao. Cacao. [from old catalog]. CACAO, 473 an elevation of between 200 meters and 800 meters (050 to 2,000 feet) marks the limits of the successful cacao plantations in this equatorial
Nyanga Mountains, Zimbabwe. People walking on the "Skywalk" - a bridge over Mutarazi Falls, the second-highest falls in Africa. The bridge is about 600 Meters (almost 2000 feet) above the floor of
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