Students From A Technical University Sitting In A Lecture Hall [Getty Images]

HAMBURG, GERMANY - JUNE 09: Students from a technical university sitting in a lecture hall. (Photo by Ute Grabowsky/Photothek via Getty Images) — see more

HAMBURG, GERMANY - JUNE 09: Students from a technical university sitting in a lecture hall. (Photo by Ute Grabowsky/Photothek via Getty Images)

Photothek Ute Grabowsky