Formule pour connaitre la pression du vent sur la surface d'un ballon et pour indiquer aussi la force necessaire d'un propulseur. Scaled diagram shows inventor Annibal Ardisson's formula for determining how the pressure of the wind on the surface of the balloon determines the force and speed required to achieve balloon flight. (Source: AG Renstrom, LC staff, 1981-82.). Date 1882.
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達志影像
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formulepourconnaitrelapressionduventsursurfaced'unballonetindiqueraussiforcenecessairepropulseurscaleddiagramshowsinventorannibalardisson'sformulafordetermininghowthepressureofwindonballoondeterminesandspeedrequiredtoachieveflightsource:agrenstromlcstaffdateaeronauticsballooniststissandiercollectionhistoryhistorical
achieveaeronauticsagandannibalardisson'saussiballonballoonballoonistscollectionconnaitred'undatedeterminesdeterminingdiagramduetflightforforceformulaformulehistoricalhistoryhowindiquerinventorlalcnecessaireofonpourpressionpressurepropulseurrenstromrequiredscaledshowssource:speedstaffsursurfacethetissandiertoventwind
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