Learning about Air Speed Indicators: Static vs Dynamic Pressure

photo credit: https://www.flightliteracy.com/pitot-static-flight-instruments-impact-and-static-pressure-chambers-and-lines/ photo credit http://www.ppl-flight-training.com/bernoulli-principle.html Realize that when the speed over a surface increases, the pressure above it drops.  photo credit: https://www.boldmethod.com/learn-to-fly/aircraft-systems/how-does-an-airspeed-indicator-work/

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The 10/40 Window

photo source: https://www.missioninfobank.org/mib/index.php?main_page=popup_image&pID=3497 The 10/40 Window is a term coined by Christian missionary strategist and Partners International CEO Luis Bush in 1990[1] to refer to those regions of the eastern hemisphere, plus the European and African part…

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