________________
224
Microcosinology : Atom how they are moving. It explains the force of gravity in terms of the curvature of a four-dimensional space-time. uncertainty principle : One can never be exactly sure of both the position and the velocity of a particle, the more accurately one knows the one, the less accurately one can know the other (page 27). virtual particle : In quantum mechanics, a particle that can never be directly detected, but whose existence does have measurable effects (page 40). wave/particle duality : The concept in quantum mechanics that there is no distinction between waves and particles, particles may sometimes behave like waves, and waves like particles (page 23). wave-length : For a wave, the distance between two adjacent troughs or two adjacent crests. weak force : The second weakest of the four fundamental forces, with a very short range. It affects all matter-particles, but not force-carrying particles (page 31). weight : The force exerted on a body by a gravitational field. It is proportional to, but not the same as, its mass. white dwarf : A stable cold star, supported by the exclusion principle repulsion between electrons (page 63).
MICRO-D.CHP
