So if you wiggle a coffee cup in front of the camera, you're feeling that in your back, and amazingly, blind people got pretty good at being able to determine what was in front of the camera just by feeling it in the small of their back.
Ako postavite šalicu kave ispred kamere, osjetit ćete to na svojim leđima, i nevjerojatno, slijepi ljudi  su vrlo dobro mogli odrediti što je ispred kamere jednostavno osjetivši to u dijelu njihovih leđa.