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A spirit duplicator (also Rexograph and Ditto machine in North America, Banda machine and Fordigraph machine in the U.K. and Australia) is a printing method invented in 1923 by Wilhelm Ritzerfeld, which was used for most of the 20th century. The term "spirit duplicator" refers to the alcohols that were the principal solvents used in generating ...
Instability of laminar jets Unstable water jet. Flow instability is the engine for whistles. It converts steady energy to time-dependent energy. An example is shown in the figure on the right with a water jet. [3] The laminar two-dimensional jet amplifies small disturbances at the orifice to generate a vortex street. For this case, the flow ...
Here's another item to add to the list of things you shouldn't try at home: tossing your plastic water bottle into molten hot steel.
Ditto (/ ˈ d ɪ t oʊ / ⓘ), known in Japan as Metamon (Japanese: メタモン), is a Pokémon species in Nintendo and Game Freak's Pokémon media franchise.First introduced in the video games Pokémon Red and Blue, it was created by the design team as a tribute to the pop culture yellow smiley face ideogram, and its design finalized by Ken Sugimori.
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Consequently, the nozzle exit area controls the fan match, which, being larger than the throat, pulls the fan working line slightly away from surge. At higher flight speeds, the ram rise in the intake chokes the throat and causes the nozzle's area to dictate the fan match; the nozzle, being smaller than the exit, causes the throat to push the ...
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