Excerpt from Die Luftahrzeuge der Zukunft: Für Personen und Waaren-Verkehr und die Aussichten der LuftschifffahrtAls einziges Analogon der ersteren wissen wir die Seifenblasen und Wolken zu nennen.Allerdings könnte man auch die Fische bicher zählen, man wolle jedoch nicht vergessen, dass sich dieselben in einem circa 777mal dichteren Medium fortzubewegen haben.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.