but it uses the slight difference between them to create one perception
of the location of a sound.
if someone stands behind you and snaps his fingers, that's how you can tell,
without looking, whether he's standing behind your right shoulder or behind
your left shoulder.
the 'plum pudding' model of the atom was proposed by jj thomson, who had also discovered the electron. it was put forth before the discovery of the nucleus. according to this model, the atom is a sphere of positive charge, and negatively charged electrons are embedded in it to balance the total positive charge