Sophia Levine, Dance 360, Light Moment 7

I noticed this my freshman year, but it is definitely worth noting. It is subtle and sometimes difficult to see, but you can find it all over campus. The light bulbs of the lampposts on campus rest directly above the lamps' posts. Because the light from the light bulbs radiates out in all directions, it is obstructed by the post on its way the ground. As a result, the light hits the ground in a bull's eye pattern emanating out from the lamppost. There is a principal of physics that speaks to this property of light, but I have forgotten its name. This could be achieved onstage by obstructing any light source in a similar fashion.