A three-terminal device. able to control the heat currents flowing through it. is known as a quantum thermal transistor whenever it amplifies two output currents as a response to the external source acting on its third terminal. Several efforts have been proposed in the direction of addressing different engineering options of the configuration of the system. https://www.jmannino.com/flash-grab-German-WW1-Helmet-Decal-Specialized-Machine-Gunners-Regiment-top-mega/