english: Because the space and the white blood cells are both more transparent to blue light than the red blood cells normally present in capillaries, we see a moving dot of light wherever this happens, following the paths of your capillaries and moving in time with your pulse.
non_english: Pošto su i prostor i bela krvna zrnca vidljiviji na plavom svetlu nego crvena krvna zrnca koja se obično nalaze u kapilarima, vidimo pokretnu tačkicu svetla  gde god da se ovo dešava, dok prati puteve vaših kapilara  i kreće se u skladu sa vašim pulsom.