Greetings..
At every level, including individual blood cells and molecules of "air", there is an electrical charge.. there is an enormous anount of energy (atom binding), and various chemical processes.. it might be wise to view Qi as a result of these energies, forces and processes rather than a separate entity.. Qi may simply be the intangible result of interactive tangible processes.. the parts of an engine don't power the auto, the constructed engine parts acting in unison produce the power.. the power itself can't be seen or measured, but its effects can.. in fact, the measurement is an "effect" of the power on a particular device.. and, someday, maybe we will build a device that can measure the effect of "Qi"..
Be well...
TaiChiBob.. "the teacher that is not also a student is neither"