A humanoid robot made by Igus gestures at the Hanover Messe on the first day of the industrial trade fair, in Hanover April 8, 2013. The Hanover fair runs from April 8 -12. REUTERS/Fabrizio Bensch ( GERMANY/ )
A motorcycle made of glass is on display at the booth of German company Schaeffler technologies at the industrial trade fair in Hanover, central Germany on April 8, 2013. The fair running from April 8 to 12, 2013 will present a cross section of key industrial technologies. RONNY HARTMANN/AFP/Getty Images ( 518731380 )
A technician performs electronic surgery by replacing a thin cable on a robot at tMaxon's booth at the industrial trade fair in Hanover, central Germany on April 8, 2013. The fair running from April 8 to 12, 2013 presents a cross section of key industrial technologies. ODD ANDERSEN/AFP/Getty Images ( 518729511 )
Visitors look at the Volkswagen XL1 concept car at VW's booth at the industrial trade fair in Hanover, central Germany on April 8, 2013. The fair running from April 8 to 12, 2013 presents a cross section of key industrial technologies. ODD ANDERSEN/AFP/Getty Images ( 518729960 )
A visitor looks at a gear wheel at NKE Bearings booth at the industrial trade fair in Hanover, central Germany on April 8, 2013. The fair running from April 8 to 12, 2013 presents a cross section of key industrial technologies. RONNY HARTMANN/AFP/Getty Images ( 518730915 )
An astronaut is seen sitting on the couch behind two business men at the Wittenstein booth at the Hanover industrial fair on April 8, 2013 in Hanover, central Germany. The fair running from April 8 to 12, 2013 will present a cross section of key industrial technologies. ODD ANDERSEN/AFP/Getty Images ( 518729118 )
A robot figure is seen during preparations at the Hanover industrial fair in Hanover, April 7, 2013. The Hanover fair opens its doors to the public on April 8 and will end on April 12. REUTERS/Fabian Bimmer ( GERMANY/ )
Visitors enjoy a ride on an industrial robot at the Hanover Messe on the first day of the industrial trade fair, in Hanover April 8, 2013. The Hanover fair runs from April 8 -12. REUTERS/Fabrizio Bensch ( GERMANY/ )
Ball bearings are pictured at the booth of German company Schaeffler during preparations at the Hanover industrial fair in Hanover April 7, 2013. The Hanover fair opens its doors to the public on April 8 and will end on April 12. REUTERS/Fabian Bimmer ( GERMANY/ )
Visitors watch different sized industrial robots by KUKA at the Hanover Messe on the first day of the industrial trade fair, in Hanover April 8, 2013. The Hanover fair runs from April 8 -12. REUTERS/Fabrizio Bensch ( GERMANY/ )
A visitor walks past at a screw propeller at DIHAG Holding's booth at the industrial trade fair in Hanover, central Germany on April 8, 2013. The fair running from April 8 to 12, 2013 will present a cross section of key industrial technologies. RONNY HARTMANN/AFP/Getty Images ( 518730954 )
Drive belts are pictured at the booth of German company Continental during preparations at the Hanover industrial fair in Hanover, April 7, 2013. The Hanover fair opens its doors to the public on April 8 and will end on April 12. REUTERS/Fabian Bimmer ( GERMANY/ )
A visitor walks past a T155 Gas-insulated substation by Alstom at the Hanover Messe on the first day of the industrial trade fair, in Hanover April 8, 2013. The Hanover fair runs from April 8 -12. REUTERS/Fabrizio Bensch ( GERMANY/ )
Visitors stand next to models of wind turbines at the booth of C.R.I.E.L at the Hanover Messe on the first day of the industrial trade fair, in Hanover April 8, 2013. The Hanover fair runs from April 8 -12. REUTERS/Fabrizio Bensch ( GERMANY/ )
Technician Cyril Jourdan looks at a human robot at the booth of Maxon Motor's at the industrial trade fair in Hanover, central Germany on April 8, 2013. The fair running from April 8 to 12, 2013 will present a cross section of key industrial technologies. RONNY HARTMANN/AFP/Getty Images ( 518731197 )