The Prediction of Ionospheric Conditions 53 such as optimism

such as optimism

dass ¿die Feinde Alis¿ den ¿Originaltext¿ etwas geändert hätten

sehen die Unternehmen in diesem Medium neue Chancen

wirtschaftlichen Sachzwänge

ihre Richtung und ihren Inhalt aber bekommen sie von dem Wort Wandlung

The Prediction of Ionospheric Conditions 53 such as optimismThe ionosphere of the Earth has been actively studied since the 1920's, following the discovery of ground radio sounding. By means of this method results were ohtained by an international network of ionospheric stations, in particular, by the successful implementation of a number of rigorously planned international scientific research programs,'" enabling the collection of extensive experimental material on some of the most important parameters of the