Regardez la vidéo gratuite A touch screen rolls up by body heat

(1.03 MB) ajouté le 27 May 2016 Joué 326 fois Amusant Science Écran tactile Fun Things to do
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A touch screen rolls up by body heat

Description de l'animation:

A touch screen rolls up by body heat, and when cooled again. Image: Germany, late 19th century, rectangular, orange-brown, probably colored printed gelatin (in earlier times such images from the swim bladder of the fish Hausen were produced), rolls up on the palm or the breathing on by the body heat, golden print.

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