It may be important to note that this book is erroneous and the chapter in question in this book actually says that Euler did not propose a hollow Earth / planets theory. Jan Lamprecht does a better treatment of this topic and, frankly, all of the people who nay say Euler having set forth a hollow Earth theory simply do not have access to his original works in the St. Petersburg Branch of the Archive of the Russian Academy of Sciences.
Unfortunately to get the actual documentation that exists will require a trip to this institute and research/reading in their original language of the manuscripts since it appears that this information is very carefully obfuscated and disallowed for public knowledge.
Anyone in Russia reading these messages? Particularly anyone in or near St. Petersburg?
(For posterity: the author of the following is not well educated on this topic compared to other material I have read that clearly shows standing and support for actual supportive information and thus it simply seems the author of this article is ignorant in this area:
Backup:
HEDI-2007-04.pdf (832.9 KB)
)
Soretna,
Ah, ok, I stand corrected!
How interesting that the Russians make access to hollow earth information difficult. They know very much about underground worlds, especially since they uncovered the undergroud tomb of the Ice Maiden in Ukok.
Nobody wants us to know about underground worlds, we are long lost to them, like the Lindbergh Baby.
Bad karma!
Cheers!