Bacteria have an amazing ability to navigate in their environment toward or away from gradients of specific chemicals - the process called chemotaxis. They swim using flagellar motors and perform temporal comparisons of chemical concentrations along their swimming trajectories. After 40 years of extensive research, bacterial chemotaxis is now the best studied system of signal transduction in biology. Such abundant experimental data require multiscale models to describe behavior of the organisms on different temporal and spatial scales. In this work authors suggest a new method for computer...