Search results for “Frei Otto”

How Wikipedia contributes to free knowledge

How does Wikipedia contribute to free knowledge? On January 15, 2016 Wikipedia turns 15 years old! Old (or maybe young?) enough to become the largest collection of free and collaborative knowledge in human history! Learn how YOU can contribute to the movement and become a part of the amazing communi

Magdeburg and its cathedral

In the 10th century, a monastery church was built in Magdeburg by Otto the Great. After a fire in 1207, construction of the Gothic cathedral began immediately. During the Thirty Years' War, the city was almost completely destroyed - except for the cathedral. Author: ZDF/Terra X/Faber Courtial/Jörg