Interaction between heavy artillery on a railroad and the air force during the Somme offensive: the role of optic telegraphy and aerology. The artillery and air force in the Verdun region: loading and...
A scientist does parachute rocket launch tests in a field. Then officers and Jules-Louis Breton examine the Delamormaz gun mechanism;
The Higher Invention Committee attends kite flying and watches an airship in the sky.
The Higher Invention Committee studies several pamphlet distribution tactics.
In a field, soldiers, officers, civilians and Jules-Louis Breton, members of the Invention Department Committee, study the manoeuvrability of military equipment used to transport ammunition.
The Department of Inventions, Studies, and Technical Experiments organizes the de-mining of a large amount of unexploded shells from the war at the Suippes military camp, settled on the ruins of the T...
The Higher Invention Committee studies the cannon wheel invented by Captain Cordier, on muddy ground.
The Higher Invention Committee tests the solidity of the manganese helmets thought up by Doctor Pollack.