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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.
“Masse”28 pages
UNCLASSIFIED/ ,'F811. 8Fflli1Ale lal!i! 8111!1/ existence of negative masses. It is the spin of the fermions, like the spin of the electron. Fermions are described by Dirac's relativistic wave equation. This equation has both positive and negative energy components and because of the mass-energy relation, it therefore must have negative mass components. According to SchrOdinger [4], it is these negative mass components which lead to the phenomenon of the spin. Since the overall mass of the electron is positive, the occurrence of negative masses in the Dirac equation must mean that the electron is a mass pole with a superimposed mass dipole [SJ. The spin is definitely not an intrinsic rotational motion of a finite size particle, as older models had suggested it to be. The original model by Uhlenbeck and Goudsmit, for example, cannot possibly be correct because it requires superluminal rotation velocities '/ 'for an electron with the classical radius t;1 = e~ me . If we consider the linear motion of a mass dipole (Figure 2), we immediately see that its translation generates angular momentum. Construction of a mass pole with a superimposed mass dipole can simply be done by choosing the positive mass slightly larger than the magnitude of its negative counterpart. For such a pole-dipole particle the center of mass S is outside the line connecting both masses (Figure 3) with its motion taking place on a circle of radius re. ~------- ' Figure 2. Translation of mass dipole. UNCLASSIFIED/ ,'1'81l 81'1'1@111ile tl!9I!! 8111:!Y 11
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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.