The magneto-ionic theory also allowed Appleton to explain the origin of the mysterious fadings heard on the radio around sunset.
2.
He developed a magneto-ionic theory based on the previous work of Maxwell to model the workings of this part of the atmosphere.
3.
Hodgkin then resumed his investigation of the ionic theory of how nerve cells send messages via an " electric cable " in the spinal cord.
4.
After the fall of Nazi Germany, Hodgkin investigated the ionic theory of how nerve cells send messages to the brain via an " electric cable " in the spinal cord.
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