Or, more precisely, the distance between the ground and the center of the eyeball. But assuming the earth were a perfect sphere: Average radius of earth = 6,372,797 meters Draw a circle representing the earth.
As a result, the Namib receives an average annual rainfall of only 2.5cm (1in). The sand dunes of the desert receive moisture from the atmosphere, in the form of fog. Every 10 days or so, a dense night fog rolls inland for a distance of 80km (50mi) or more, shrouding the coast and much of the desert. The fog condenses into a thick dew, creating an annual average of 4cm (1.6in) of moisture. Temperature in the Namib reaches a high of 66Â°C (150Â°F) in the middle of the day. Gravel and rock plains extend north from the Kuiseb River. The treacherous coastal waters of this region regularly snare ships, such as the Dunedin Star (1942) and the Shawnee (1976), and cast them up on the shifting sands.
for National Geographic Today. A beetle that lives in the Namib Desert, one of the hottest places on Earth, survives by using its bumpy shell to draw drinking water from periodic fog-laden winds.Scientists at the British Ministry of Defense are mimicking the shell's architecture to design more efficient water-harvesting techniques.his water-collecting ability is critical to the beetle's survival because the Namib Desert is one of the most inhospitable places on Earth, with scorching sands that can reach 60 degrees Celsius (140 degrees Fahrenheit).