A device, comprising: a base assembly including a processor and a crank shaft configured to define a lower axis of rotation (120 ); a display assembly including a display that is driven by the processor , the display secured by a display mount relative to a display shaft that is configured to define an upper axis of rotation (120 ); a hollow arm (118 ) secured to the crank shaft and forming an angle α with said base assembly, such that when the hollow arm rotates around the lower axis of rotation to adjust said angle α, the crankshaft rotates correspondingly, wherein said crankshaft comprises a crankpin such that reducing the α angle causes the crankpin to turn in a counterclockwise direction and this action forces a connecting rod coupled to the crankpin so that movement of the connecting rod compresses a spring that is arranged in the base assembly , and said hollow arm is secured to the display shaft such that when the hollow arm rotates around the upper axis of rotation the display shaft rotates correspondingly; a lower link positioned within the hollow arm (118 ) and secured to the base assembly ; an upper link positioned within the hollow arm (118 ) and secured to the display mount such that the display mount rotates around the upper axis of rotation in correspondence with a rotation of the upper link around said upper axis of rotation; an inner link positioned within the hollow arm (118 ) being rotatably secured by its lower end (1612 ) to the lower link and rotatably secured by its upper end (1616 ) to the upper link ; and an outer link positioned within the hollow arm (118 ) being rotatably secured by its lower end (1612 ) to the lower link and rotatably secured by its upper end (1616 ) to the upper link . a base assembly including a processor and a crank shaft configured to define a lower axis of rotation (120 ); a display assembly including a display that is driven by the processor , the display secured by a display mount relative to a display shaft that is configured to define an upper axis of rotation (120 ); a hollow arm (118 ) secured to the crank shaft and forming an angle α with said base assembly, such that when the hollow arm rotates around the lower axis of rotation to adjust said angle α, the crankshaft rotates correspondingly, wherein said crankshaft comprises a crankpin such that reducing the α angle causes the crankpin to turn in a counterclockwise direction and this action forces a connecting rod coupled to the crankpin so that movement of the connecting rod compresses a spring that is arranged in the base assembly , and said hollow arm is secured to the display shaft such that when the hollow arm rotates around the upper axis of rotation the display shaft rotates correspondingly; a lower link positioned within the hollow arm (118 ) and secured to the base assembly ; an upper link positioned within the hollow arm (118 ) and secured to the display mount such that the display mount rotates around the upper axis of rotation in correspondence with a rotation of the upper link around said upper axis of rotation; an inner link positioned within the hollow arm (118 ) being rotatably secured by its lower end (1612 ) to the lower link and rotatably secured by its upper end (1616 ) to the upper link ; and an outer link positioned within the hollow arm (118 ) being rotatably secured by its lower end (1612 ) to the lower link and rotatably secured by its upper end (1616 ) to the upper link . <EOS>