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Defense Intelligence Reference Document Advanced Space Propulsion Based On Vacuum Engineering

Defense Intelligence Agency · 17 pages · text from the file's own layer

This Defense Intelligence Reference Document, dated 29 March 2010 and prepared by the Defense Intelligence Agency, is one of a series of advanced technology reports produced in FY 2009 under the Advanced Aerospace Weapon System Applications (AAWSA) Program. It uses a metric tensor approach from general relativity to catalog the physical effects of engineering spacetime, such as altered time, mass, light speed and antigravity. It concludes that such concepts, including warp drives, are consistent with physics, but that the energy requirements remain daunting.

  • p. 4 …and several times have changed radically, over the history of science. Today the third view is…
  • p. 7 …dx 11 and time intervals dt, defined in a flat Minkowski spacetime, the spacetime of common…
  • p. 8 …Given that frequency measurements are the reciprocal of time duration measurements, the associated expression for frequency…
  • p. 9 …the x 1 = r direction is given by the ratio of locally measured (proper) distance/time…
  • p. 11 …TIME ALTERATION With regard to the first table entry (time interval), in a spacetime-altered region…
  • p. 12 …An additional implication of time speedup within the frame of an exotic craft technology is that…
  • p. 13 …the conventional speed of light could occur in principle, and therefore the possibility of reduced-time…
  • p. 15 …short travel times between two distant points in space. The behavior of the warp drive metric…
  • p. 16 …Signatures of the predicted contractions and expansions of space, slowdown and speedup of time, alteration of…
  • p. 17 …Yurtsever, "Wormholes, time machines, and the weak energy condition," Phys. Rev. Lett. 61, p. 1446 (1988…
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components of potential utility involve very-small-wavelength, high-frequency
field structures and thus resist facile engineering solutions. With regard to
perturbation of the spacetime metric, the required energy densities predicted
by present theory exceed by many orders of magnitude values achievable with
existing engineering techniques. Nonetheless, one can examine the
possibilities and implications under the expectation that as science and its
attendant derivative technologies mature, felicitous means may yet be found
that permit the exploitation of the enormous, as-yet-untapped potential of
engineering so-called "empty space," the vacuum.
This paper introduces the underlying mathematical platform for investigating
spacetime structure, the metric tensor approach. It then outlines the
attendant physical effects that derive from alterations in the spacetime
structure. Finally, the paper examines these effects as they would be exhibited
in the presence of advanced aerospace craft technologies based on spacetime
modification.
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 17 pages are in the text index: search them above, or from the library's search.