After removing the effects of solar rotation and accounting for the angle of view of areas not facing directly toward Earth, the researchers could discern the so - called
giant cell flow patterns (material moving east is depicted in red, that moving toward the west in blue), which cause supergranules to slowly drift across the surface of the sun.
The following year, based on experiments in the
giant squid axon, British biophysicists Alan Hodgkin and Andrew Huxley described how ion
flow across the
cell membrane generates the electrical spikes — called action potentials — that constitute these signals.