How did Appleton discover the Appleton layer?
My discovery was the result of a systematic experimental approach, not mere speculation. I designed experiments to test the hypothesis that the atmosphere's upper reaches contained ionized regions capable of reflecting radio waves. We employed a technique involving a transmitter and receiver, carefully measuring the received signal's strength and phase at varying distances. By observing interference patterns and phase shifts, we could deduce the presence and properties of an overhead reflecting layer. This led to the identification of distinct reflecting regions, one of which, the F layer, is now often associated with my name. The evidence suggests that precise measurement and careful analysis of radio wave propagation were key.
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