genius Turn on the brain, switch on your mind – hand pushing ON button in the brain shape 3 Jahren ago Turn on the brain, switch on your mind - hand pushing ON button in the brain shapeDas Bild Turn on… Hand pushing off button in the brain shape. A symbol of turning off the brain or switching off thinking 3 Jahren ago Hand pushing off button in the brain shape. A symbol of turning off the brain or switching off thinkingDas Bild… Hand writing well-known E=mc2 physical formula on chalkboard 4 Jahren ago Hand writing well-known E=mc2 physical formula on chalkboardDas Bild Hand writing well-known E=mc2 physical formula on chalkboard von Marco Verch… Human hand writing Genius on whiteboard 5 Jahren ago Human hand writing Genius on whiteboardDas Bild Human hand writing Genius on whiteboard von Marco Verch kann unter Creative Commons…