WebThe mean curvature of the earth is around one radian per 6400km*, which you can easily convert into any equivalent forms (even your noddy units of inches and miles). * The precise WebApr 5, 2024 · Missing curvature is the nail in the coffin for a globe earth. We can see lasers, buildings, lighthouses and land masses at distances far beyond what we would be able to see with the required curvature of 8 inches per mile squared for a globe earth.

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Web33. Earth’s axis is 23.5 degrees and it’s orbital inclination is 66.5 degrees 32. Earth’s orbital speed is about 67,000 miles per hour or 107,000 km/h 31. Earth’s circumference is 21,639 nautical miles not 21,600 nautical miles 30. The speed of sound is 666.379 knots or approximately 667 knots, not 666 knots 29. Webh is the height of that object above the ground underneath. Rearranged, h = d²/ (2r + h). Because h << r, you can set 2r + h ≈ 2r, and use h = d²/2r. Plug in the Earth’s average radius of 3960 miles for r and you get h = d²/7920. Convert miles to inches, and h = 8d². The correct statement should be 8 inches times miles squared per miles ... dating services seattle

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WebFeb 4, 2024 · The Earth curves at about 8 inches for every mile squared, but this distance is too minimal for a human being to discern the curvature. Even while on top of Mount Everest, it is impossible to see the curvature. Studies place the threshold to see the curvature at 35,000 feet, but even at this height, one must have at least a 60° angle of … WebAug 24, 2024 · Earth’s curvature is about 8 inches per mile, which would be trivial compared to local geography changes. ... Building the 2-mile-long structure was an engineering challenge that required taking the Earth’s curvature into account (a 20-inch shift in the vertical axis). Electrons fired from one end of the gallery reached 99.999% of … WebIt's hard to see the curvature of the earth from an altitude of 7 miles or 37,000 ft (typical cruising altitude of a jetliner) but easy to see from 250 miles (typical altitude of the ISS). Most people don't realize how large the earth is compared to the altitude of a … dating services toronto ontario