istory of The Hollow Earth Theory
dmund Halley in 1692 in "Philosophical Transactions" of Royal Society, put forth
the first modern theory of the hollow Earth. His calculations placed two hollow shells and
a solid sphere nested inside. This construction was necessary to explain anomalous
magnetic compass readings. Halley envisioned the atmosphere inside was luminous
and that escaping gas from this cavity was the cause of Aurora Borealis.
Halley stated 'Sir Isaac Newton has demonstrated the Moon to be
more solid than our Earth, as 9 to 5; why may we not suppose four ninths of our globe to be
cavity?' (Phil Trans 1692 xvi 568). Halley went on to state 'I have adventured to make these
Subterranean orbs capable of being inhabited.'
Later when Halley came across readings that could not be accounted for by one interior
earth, he added two more, each nestled inside the other like a set of Chinese boxes.
"They are, "Halley told the Royal Society of London in 1692, approximately the size of
Mars, Venus and Mercury."
eonard Euler replaced the concept of multiple nested shells and replaced them with an interior
sun. He purposed that this internal sun would provide light to an advanced inner-earth civilization.
ir John Leslie theorized that there were two suns in the hollow of the Earth. These he called
named Pluto & Proserpine. These self orbiting object would produce the magnetic anomalies
that had been observed on the surface.
hese possibilities were further explored in 1721 by Cotton Mather in the twenty fourth chapter,
that concerned with Magnetism, of his book "Christian Philosopher".
