String is 5 meter long light sculpture based on spinning electro-luminiscent wire between two electric motors, all controlled by microcontroller Arduino. The string is changing shape in time, because of different tension when the speed of motors change. That makes rotary sinus curve, the number of amplitudes and nodes depends on the speed of motors thus tension. It is possible to stroboscopically flash the wire at the same position and visually stop the sinus curve or intersection of sinusoid at one place. Idea of whole concept came from my interest about science, especially theoretical physics and it´s concept of String theory in this case. Which says that everything is made of vibrating strings or rather membranes at multi-dimensional (10/11) space-time. It means, that different properties of mater, antimatter, energy and so on, are just different frequencies. It was made in june, 2012.