"If someone turns a lamp on behind you can generally see the light that comes from it reflecting on things within your visual range. Just because you can't see the source doesn't mean that you can't see the light. In some ways the light from a lamp and the sound from a speaker are similar. Maybe that's why people get confused and use lamp cords on their speakers."
One could list all the physical differences between light and sound as well as the physiological mechanisms that humans devote to each and/or both. However, just leave it that it you can heard sound from behind you without any boundary reflections but the same cannot be said for light. Besides, the analogy has no general value here.
Kal
One could list all the physical differences between light and sound as well as the physiological mechanisms that humans devote to each and/or both. However, just leave it that it you can heard sound from behind you without any boundary reflections but the same cannot be said for light. Besides, the analogy has no general value here.
Kal