Incandescent giant lamp, model of the Edison type bulb. Expo
Incandescent giant lamp, twelve feet high, mounted on a pedestal crowned by a model of the Edison type bulb, increased 20, 000 times. Showed as one of the inventions of Thomas Edison (1847-1931) in the Exposition Universelle of Paris in 1889. Engraving published in 'La Ilustraci??n Espa?ola y Americana' (Spanish and American Illustration) in 1889. Colored engraving.
© Thaliastock / Mary Evans
WW1 - Aircraft - The Henri Farman HF .20
WW1 - The Farman HF.20 and its derivatives were a family of reconnaissance aircraft produced in France shortly before and during the First World War. A pilot and co pilot are pictured seated in the aircraft, whilst air mechanics are on stand-by. Two officers stand in the foreground overseeing the preparation on the airfield. Date: 1915
© Mary Evans Picture Library
A German telescopic field-periscope
A photograph of a German army field-periscope captured by the French army in 1916. The device, whose telescopic tube could be extended up to twenty-five meters in height, was used to observe the surrounding terrain for great distances and could be packed for travel as shown in the inset picture. The French army officers who discovered the periscope are reported to have at first mistaken their prize for a new type of German artillery.
© Illustrated London News Ltd/Mary Evans