Abstract: An implement and method to cut and seal the end of synthetic hair braids by melting and fusing together the hair strands of the braid includes two opposing blades with small flat edges which touch each other and are intended to hold a braid to be cut and sealed between them. Heat is applied to the place the braid is held by the implement which may be by an external stove, attached heating elements or internal heating means which can be electrically powered.

Abstract: A collision avoidance system for airplanes particularly suited for clear weather visual circumstances which includes television cameras suitably positioned on an airplane to view all areas where there is a potential for collision with another airplane. The system includes an on-board television display in ready view of the pilot which is connected to a machine vision system predeterminedly programmed to respond to other flying objects which could present a collision hazard. The television cameras on the airplane are, in turn, connected to the machine vision system so as to transmit images to which it is responsive thereby causing an alert condition for pilot scrutiny.