Assertion: photon's energy | /r/HasProperty | gone to far end of the cable
Facets:
value: at light speed
type: MANNER
Source sentences:
text: Connect anything to that battery and the initial (transient) output at light speed is only half the battery potential; the full battery potential only appears in a cable connected to the battery when the energy has gone to the far end of the cable at light speed and reflected back, adding to further in-flowing energy from the battery on the return trip, and charging the cable to v/2 + v/2 = v volts.