  The gravitational field, and radiation from quantized gravitational atoms and
little black holes (LBH) are analyzed in n-space, i.e. in all dimensions to
develop insights into possible additional compacted dimensions as predicted by
hierarchy and string theory. It is shown that the entropy of LBH is
significantly greater in higher dimensional space with potential implications
to the initial entropy of the universe. A case is made that LBH are the dark
matter of the universe, and can manifest themselves as the core energy source
of ball lightning (BL). The LBH incidence rate on earth is related to BL
occurrence and has the potential of aiding in the determination of the
distribution of LBH and hence dark matter in the universe. Examination of LBH
interactions with the atmosphere are found to be in accord with observations of
BL. Possibilities are explored as to why Hawking radiation has been undetected
in over 25 years. An alternate LBH tunneling radiation model is described.
