The coffee filter

Foto: Elke Wetzig (Ausschnitt) | CC BY-SA 3.0

Spot on. Not satisfied with the solutions available at the time, she experimented with a tin can and her sons' blotting paper.

The printing press is certainly one of the greatest German inventions. From the fifteenth century, it meant that books - and therefore knowledge - could be disseminated worldwide. Looking back, it is also seen as heralding in a new era for humankind. 

Our question: What is the name of the person who invented the printing press and lived 550 years ago in Mainz?

Johannes Gutenberg  Rudolf Diesel  Werner von Siemens

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