Dubbed «WiSee,» the system uses a modified wireless router to receive and identify slight disturbances in wi - fi signals that permeate living spaces. (scientificamerican.com)
Everyone was afraid to make a sudden move or speak above a whisper for fear that even such slight disturbances could cause the craft to lurch against the sharp rocks that lay hidden just below the waves. (religion-online.org)
You'd like to peek in, but if your twins are anything like mine (very light sleepers), even the slightest disturbance risks waking them up. (bestoftwins.com)