The reflection velocity is the reason that missile weapons cannot be fired from the inside of a Shield: whenever a mass impinges upon the inner surface of a planar field at a velocity of approximately 200-400 meters per second (the exact speed is inversely related to the strike speed), the field undergoes an instantaneous reflective reversal, with the outer surface and the inner surface switching positions. The field then functions as usual, except that the radiation emitted due to absorption of the mass's energy is radiated inward, and, furthermore, that radiation is reflected by the now-interior surface of the field. This normally leads to any wearer of a personal Shield being cooked by long radio waves in a very short time. Likewise, a planar effect field is transparent to all incoherent electromagnetic emissions traveling from the interior of the fie,ld to the exterior, regardless of its outer surface's absorption characteristics. However, when coherent light impinges upon a planar effect field from either surface, there is an uncommonly violent reaction. This reaction is the result of the coherent light causing the subverted binding force acting upon the pseudo-atoms m the field to rebel, rejecting its grip on the pseudo-matter. This causes an instantaneous and total conversion of the pseudo-mass of the shield into a lump of degenerate real matter at the spatial center of the volume enclosed by the planar effect, which matter then converts to pure energy. Fortunately, the actual mass of a planar field is usually quite tiny, on the order of .005 gram for a personal shield. Thus, this typical field, if touched by a laser beam, would result in an atomic blast with a power of 4,500,000,000,000,000,000 ergs, or a little less than . 1 kiloton of the atomic scale. The suspensor-nullification effect. The three-dimensional Holt/man Effect field operates, like all Holtzman Effect fields, by drawing upon the energy of the controlled interface of something that cannot exist with something which must exist. In this instance, the effect depends upon the tension between real and inchoate four-dimensional spacetime: the strain between the two causes realspace to fracture in a tiny locality (generally a globe no more than a kilometer across, though larger effects have been generated), whereupon the mass within that area falls through HOLTZMAN EFFECT 314 HOUSES MINOR into the Void. Skilled maneuvering requires either a basic prescience or enough jmental power to project the future with a high degree of certainty. The field itself mast be moved, rotated, struck, or steadied to induce desired movement with regard to the Outer Universe and can deliver that mass nearly anywhere, or, if one is not very careful, nowhere. The Void is the most irritating of the many anti-logical constructs which have been made necessary by the development of the Holtzman Theories.