Thread 'How to find route if we only know velocity (without the need of popular formulation)?' Hello there! I invented the condition And that i test to resolve it: Allow we only know velocity of shifting particle: ##v(t)## from ##t=a## to ##t=b##. Photon 'time bins' and signal steadiness show assure https://gabletoppak.com/boost-brand-visibility-with-customized-packaged-drinking-water/