Absolutely EVERYTHING about these machines is amazing. Do you know what absolutely blows my mind? That plane contains all the fuel it will need for a bunch of hours of flight + amazing acrobatics in that teeny tiny fuselage.
I still cannot get over jet liners being able to fly from LA to Zurich non stop FULL OF PEOPLE + FULL OF LUGGAGE + ADDITIONAL CARRYING CAPACITY LIKE PACKAGES + FOOD FOR ALL PASSENGERS + OVERHEAD BIN LUGGAGE + ENOUGH WATER FOR TOILETS FOR ALL PASSENGERS + ENOUG SPACE FOR TOILETS FOR ALL PASSENGERS.
I just cannot understand how a jetliner can actually contain enough fuel to accomplish that safely with fuel to spare just in case.
Standard barometric pressure is ~1010 millibars. A 10% drop in pressure = 180mph winds. Air pressure is tremendously strong if harnessed. The hot can trick lowers the pressure inside the container by heating it and equalizing with the outside air. Then when you cool it and the air contracts the external air pressure crushes the can.
Magic. Got it.
The pressure drops .7 psi across the wingspan of an Airbus A320 at ~120mph aka take off speed/AoA, the airflow over the wing's low pressure peak is ~400mph.
You want a little secret? If you know the Reynolds number, you can get the same effects in water, air, or honey as long as you have the same Reynolds number. Re# is just the relationship between a fluid's kinetic energy to viscosity. In all fluids, flow goes from laminar to turbulent at ~4,000 Re# it can be higher if carefully controlled, but it's pretty much a constant. This means you can do experiments in water and it will translate well to air as long as the Re# of both experiments is the same.
In practical terms, you can take a full scale model of something and shrink it to a 40% model and have a flow speed 1/10th that of air speed you're studying, and you will have similar results.
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