German researchers studied the aerodynamics of beer flasks made of cardboard and concluded that even a seasoned jug would not be able to fly with them for long.
What are the two essential holiday accessories (apart from lounge chair andbath)? Answer: Frisbee and . Unfortunately, one doesn’t replace the other, as a new study has just shown that it investigated whether cardboard coasters can make a good Frisbee. To do this, researchers (naturally German) at the Helmholtz Institute for Radiophysics and Nuclear Physics and the Institute of Astronomy at the University of Bonn built a ship throwing device and conducted a series of experiments designed to study These mini cardboard discs are 10 cm in diameter.
The beer coaster has been inverted making it unusable as a flying saucer
« You would expect a beer ship to fly the same way a frisbee does, that is, with an extension . Unfortunately, due to Relatively thin from cardboard, the ship undergoes chaotic rotations about the two axes of the disc In addition, unlike Frisbee which has rounded edges and a coil Near its center – which prevents its sudden rotation – the beer ship undergoes modification , is not in the center of the disc, but is slightly offset from the leading edge. ” This calls for the extension making it unusable as a Flying Layer ‘, the authors testify.Pointing up or down the stability of the disc, the researchers write in their study published in
Barely 0.45 seconds of stability
The researchers confirmed the result of their theoretical equations with their device for throwing the two-ship shipElectric causes the cardboard disk to accelerate at different speeds and angular moments. Result: whatever With initials, it always ends up tilting with respect to vertically, so that it is braked and quickly falls to the ground or rotates in all directions.
Thus the coaster maintains its stability for only 0.45 seconds after launch, versus 0.8 seconds forOr 16 seconds for a frisbee. Note that the performance of the Frisbee varies greatly depending on the quality of the launch. ” With a poor launcher, the frisbee will turn into an unsteady state after just 1 second, while a professional bowler will be able to maintain a stable state for a while. much longer ’,” note the authors. However, even an experienced pitcher will not be able to do much with a beer coaster. You can still try to start a contest in . Send us your records!
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