Objekt

in der Rubrik "Science for the People": "A German inventor and author, Herr Otto Lilienthal, has just printed a book describing the experiments made by himself and brother on the form of wings best adapted for carrying heavy bodies through the air. He concludes that the real secret of a bird's flight lies in the arch of the wings, and that close imitation of the birds is the only method of solving the problem of human flight. The artificial wings of the investigators have been made so effective as to raise half the weight of the operator, the apparatus, worked by foot levers, being made to rise with a person weighing 160 pounds when a counterweight of eighty grounds is helping to lift by means of suitable pulleys."