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During July-September: Inaccessible parts of Alaska mapped from the air by Army Air Service pilots, beaded by Capt. St. Clair Streett (USA). ''Listening For Signals From Mars'' by Dr. Frederick H. Millener appears in Electrical Experimenter magazine.

During July-August: Verein fuer Raumschiffahrt VfR successfully fired Mirak II rocket to height of 200 feet, ...

... history of Rocket Propulsion in the magazine Practical Mechanics . The first article appears in the July edition and covers the subject up to the year 1810.

During July-October: Instrumented Loki I and Deacon rockets were successfully balloon launched (Rockoons) from shipboard off the coast of Greenland in cosmic-ray studies by State University of Iowa research group. Army Ordnance supplied Jet Propulsion Laboratory JPL -developed Loki rockets and ONR sponsored the project.

... National Advisory Committee for Aeronautics NACA Langley, the beginning of the conception of Scout . During July-August: National Advisory Committee for Aeronautics NACA Ames Laboratory's Alfred Eggers worked out semi ...

Robert H. Goddard meets with Hugo Gernsback and David Lasser who offer him stock in Wonder Stories magazine. Goddard declines. Media:1929_7_rakete.pdf Die Rakete Journal of the VfR July 1929

... Gernsback publishes story “A Daring Trip to Mars” by rocket pioneer Max Valier in the July issue of Thrilling Wonder Stories . ''The Revolt of the Machines'' a science fiction story by ...

Nikolai Ivanovitch Tikhomirov 's laboratory in Moscow is renamed the Gas Dynamics Laboratory GDL . Media:1928_7_rakete.pdf Die Rakete Journal of the VfR July 1928

Media:1927_7_rakete.pdf Die Rakete Journal of the VfR July 1927

... Voice of America broadcast of Apollo 11 for July 20th 1969. Each file is approximately one hour long and may take some time to ...

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