Machine à écrire avec l’au-delà, Jean Perdrizet, 1971. Oui-Ja électrique, Jean Perdrizet, 1971. Perdrizet drew the designs for several devices meant to communicate with the beyond. Ghosts and the dead would trigger electrical signals translated in the letters of the alphabet by Perdrizet’s inventions. As Perdrizet didn’t believe ghosts would speak a human language, he […]