The Symmes Theory of Concentric Spheres

GPTKB entity

Statements (18)
Predicate Object
gptkbp:instanceOf scientific theory
gptkbp:alsoKnownAs gptkb:Hollow_Earth_theory
gptkbp:basisFor Symmes Hole hypothesis
gptkbp:describes Earth is composed of concentric spheres
https://www.w3.org/2000/01/rdf-schema#label The Symmes Theory of Concentric Spheres
gptkbp:influenced gptkb:science_fiction
hollow Earth literature
gptkbp:inspiredBy exploration proposals to the poles
gptkbp:opposedBy mainstream science
gptkbp:proposedBy gptkb:John_Cleves_Symmes_Jr.
1818
gptkbp:requires Earth contains multiple inner shells
Earth has large openings at the poles
Earth is hollow
gptkbp:subjectOf pamphlets and books in the 19th century
public lectures in 19th century United States
gptkbp:bfsParent gptkb:Americus_Symmes
gptkbp:bfsLayer 8