Photo Gallery: The Steep Challenges of German Vineyards 11/26/2013
 There are two designs of "Geisi," as researchers have dubbed their curious...
Corbis

There are two designs of "Geisi," as researchers have dubbed their curious contraption, both sitting in a workshop at Geisenheim University, in the Rheingau wine-producing region of central-western Germany. Here, a shot of vineyards near the village of Bremm, in Rhineland-Palatinate, Germany.