Heisenberg's uncertainty principle states that we cannot simultaneously measure both the position and momentum of an object better than a certain accuracy. this limitation is not a consequence of imperfect technology, but is a fundamental law. it applies to all objects -- photons, electrons, baseballs, etc.. a highly monochromatic, continuous beam of laser light of wavelength 470 nm passes through an electro-optic shutter. the shutter opens and closes in a time interval of δt = 90 ps . after passing through the shutter to what uncertainty, δx, have the photons been localized?