问题标题：
【风筝的飞行隐藏着什么科学原理?英文的!如上最好有中英对照的】
问题描述：
风筝的飞行隐藏着什么科学原理?英文的!
如上
最好有中英对照的
陈邦兴回答：
Kite(device),wind-supportedflyingdeviceconsistingofawoodenorsimilarframeworkcoveredwithpaper,cloth,orsyntheticmaterial.Akiteisarudimentaryairfoil;itcanbeflownforpleasureorforpurposesofstudy.Attachedtoalongstring,itcanbesentaloftthroughtheactionofthewindonitssurfaces.Itsdistanceorheightiscontrolledfromthegroundbyplayingoutthestring.KitesareofancientoriginandwereflownbyvariousAsianpeoplesandtheancientEgyptians.Todaykiteflyingisapopularpastimeandacompetitivesport.IneasternAsia,specialcompetitionsareheldinwhichthekitesareelaboratelydesignedanddecoratedintheformsofbirds,fish,ordragonsandmaybeequippedwithwhistlesorpipesthatemitmusicalsoundsasthewindblowsthroughthem.Kite-fightingcontestsarealsoheld,inwhichcompetitorsattempttousetheirkitestoattackanddownthekitesofopponents.
Kiteshavebeenemployedforpracticalpurposesaswellasforpleasure.AmericandiplomatandscientistBenjaminFranklinexperimentedwithkitestoinvestigateatmosphericelectricity,andkitestudieswerealsomadebytheAmericanphysicistandinventorAlexanderGrahamBell.Beginninginthe1890sandcontinuingforabout40years,boxkites,consistingoftwoormoreconnectedopen-endedboxes,wereusedforsendingmeteorologicinstrumentsalofttomeasurewindvelocity,temperature,barometricpressure,andhumidity.Inthelate19thandearly20thcenturies,kiteswereusedforliftingmilitaryobserverstoheightsfromwhichtheycouldobservethedispositionofenemyforces.DuringWorldWarII(1939-1945),kiteswerealsousedasgunnerytargets.Present-dayapplicationsincludetheiruseassignalsinair-sea-rescueoperations.
查看更多
