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Conspiracies & Cover-ups
Is The Earth Flat?
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<blockquote data-quote="Japrim" data-source="post: 140500" data-attributes="member: 7558"><p>In terms of aviation, do you know what the difference is between the common terms "mach speed" and "speed over ground" is?</p><p></p><p>Speed over ground is relative to the surface of Earth, just like in a car or train or anything else.</p><p></p><p>The speed of sound waves traveling through the air is mach. Thus mach speed is measured relative to mach, which varies depending on altitude. The higher the elevation, the less dense or thinner the air gets. Sound waves travel slower through less dense thinner air. Therefore there is a curve ratio of altitude per mach speed. Mach at sea level is 768 mph, but at around 35,000+ feet, is about 200 or 250 mph.</p><p></p><p>That difference between 768 and 200 something is due to the CIRCumfrence of the Earth being lesser than that of the atmosphere at a higher altitude.</p><p></p><p>If you had two fighter jets racing from point A to point B. One of them was at 35,000 feet altitude, the other at 500 foot altitude, just above tree tops, both flying at the speed of sound, ...the one flying at 500 feet will win because it has a lesser distance to travel.</p><p></p><p>They would both have an equal distance to travel if the Earth was flat.</p></blockquote><p></p>
[QUOTE="Japrim, post: 140500, member: 7558"] In terms of aviation, do you know what the difference is between the common terms "mach speed" and "speed over ground" is? Speed over ground is relative to the surface of Earth, just like in a car or train or anything else. The speed of sound waves traveling through the air is mach. Thus mach speed is measured relative to mach, which varies depending on altitude. The higher the elevation, the less dense or thinner the air gets. Sound waves travel slower through less dense thinner air. Therefore there is a curve ratio of altitude per mach speed. Mach at sea level is 768 mph, but at around 35,000+ feet, is about 200 or 250 mph. That difference between 768 and 200 something is due to the CIRCumfrence of the Earth being lesser than that of the atmosphere at a higher altitude. If you had two fighter jets racing from point A to point B. One of them was at 35,000 feet altitude, the other at 500 foot altitude, just above tree tops, both flying at the speed of sound, ...the one flying at 500 feet will win because it has a lesser distance to travel. They would both have an equal distance to travel if the Earth was flat. [/QUOTE]
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