The head of a pin is about 2mm in diameter. Use this animation to compare the relative sizes of cells and organisms sitting on a pinhead. Nearly invisible without magnification, dust mites dwarf pollen grains and human cells. In turn, bacteria and viruses are even smaller.se this animation to compare the relative sizes of cells and organisms sitting on a pinhead. Nearly invisible without magnification, dust mites dwarf pollen grains and human cells. In turn, bacteria and viruses are even smaller.
GPS and GSM Tracking. GG-Tracker tracks the location of your mobile device. It displays your position on the internet using Google Maps / Earth and uses live updates via AJAX technology.GG-Tracker can run standalone or integrated on an existing webpage.G-Tracker tracks the location of your mobile device. It displays your position on the internet using Google Maps / Earth and uses live updates via AJAX technology. GG-Tracker can run standalone or integrated on an existing webpage.
Timing advance. In the GSM cellular mobile phone standard, timing advance value corresponds to the length of time a signal takes to reach the base station from a mobile phone. GSM uses TDMA technology in the radio interface to share a single frequency between several users, assigning sequential timeslots to the individual users sharing a frequency.