Sadly not quite as cool as I was hoping. It's really a "push from the sides w/ the right angle against an appropriately shaped object such that net momentum is

Sadly not quite as cool as I was hoping. It's really a "push from the sides w/ the right angle against an appropriately shaped object such that net momentum is toward some putative 'source' of the beam when in fact there are two separate beams that are widely displaced from this 'source' location".