Defense Intelligence Reference Document Negative Mass Propulsion

Defense Intelligence Agency · 43 pages · text from the file's own layer

This Defense Intelligence Reference Document from the Defense Intelligence Agency is dated 3 January 2011. It was produced under the Advanced Aerospace Weapon System Applications (AAWSA) Program as part of a series of advanced technology reports. The report asks whether negative mass exists and whether it could be used for propulsion. It concludes that one route might be an ultra-light form of matter that could have gathered at the Moon's center. Reaching it would take a tunnel dug with thermonuclear shape charges.

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p. 8 …If the length is very small, this energy can be so high as to be far…
p. 9 …It is here that we must disagree with Bondi 1 , because it can be shown that…
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p. 42 …This means that a small, continuous removal of the heat through the injection and circulation of…

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If rs is the horizontal radius up to which the rocks at a certain depth have to be
shattered (cylindrical case), one finds by equating p(r) in (115) and (117)
(116)
The total energy required to shatter the rocks to make a tunnel from the center at the
moon where r = 0, to its surface where r = R, is then given by summing up over the
slices with radius rs and thickness dr
(117)
where as in eqn (110) s,. ~1010 erg/cm3 is the cohesive binding energy of the rocks. For
(119) one can write
'
E=llc 2 Rt:, (p,,,,)p 0 )"" f(1-x 2 )"
0
dx. (118)
0
With the help of Euler's betafunction one has
'( ')'N (! !!J .,J;;f 1-(xr dx=(ll2)B -,- ec-.
0 2 9 2 (119)
Hence,
(120)
finds that E;:;:2xl0 24 erg:::;,5xl04 kiloton=50Megaton.
It must be emphasized that this energy must be quite nonuniformly released along the
tunnel shaft. Nuclear fusion explosions below a yield of 10 kiloton become
uneconomical with only a fraction of the energy in the fissionable material (needed to
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 43 pages are in the text index: search them above, or from the library's search.