AAWSAP DIRD, Negative Mass Propulsion, January 2011

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heat diffusion time for a 20 m layer of rocks is ~ 30 years. This means that a small,
continuous removal of the heat through the injection and circulation of a liquid metal
into the crushed rocks should keep down the temperature of the tunnel wall and its
environment.
13. Conclusion
The purpose of this study is the question as to whether negative mass might exist, and
if negative mass propulsion is possible at all. It is unlikely to be possible in the fashion
speculated by Forward [13] (but also see Winterberg [17]), where a negative mass is
chasing a positive mass without the expenditure of any energy. Rather, it might
perhaps be possible through the existence of an ultra-light form of matter with the
tensile strength of ordinary matter on a macroscopic scale where positive matter is
bound to negative matter, as happens with Dirac spinor particles on a microscopic scale.
This is the speculative existence of macroscopic bodies approaching zero rest mass, of
importance for space flight because such matter would greatly reduce its energy
requirements.
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