a heat extraction system is provided for a laptop computer that comprises a system unit that includes a set of heat sources and a video display unit that is movably attached to the system unit . the laptop computer has air inlets and air outlets that allow air to flow into the system unit , over the heat sources forming heated air , and exhaust the heated air . the laptop computer has a set of tubes , which have an inlet and an outlet , located behind a video display in the video display unit and an air connection from the air outlets to each inlet in the tubes . the set of tubes are formed such that heated air passing through a constriction in the set of tubes changes in velocity and pressure in order to satisfy the conservation of flow rate . thus , heat produced by the heat sources is extracted from the laptop computer .