stories about the behavior of metals and eggs in the microwaves. The aim of my work is to give an overview about history of microwaves and explain the principles of its work and explain some reactions with different materials by carrying out some experiments. The most important component parts are magnetron, transformer, cooking chamber and the rotating plate, which assures the even cooking of the food. Cooking procedure can only be taken place when food contains dipoles, which rotate themselves under the influence of microwaves. When the energy of microwaves absorb it turns into heat energy. The experiments show, that it takes more to heat food even than just microwaves reflecting from the walls, like it was claimed in a physics lexicon. A turning plate is recommended, like shown on a Figure 2. The experiments show also, that the intensity of the microwaves is equal to zero point.
100MHz frequency range, which mainly Gabriel 1996; Gabriel et al. 1996a, b, c). corresponds to the conductivity of intra- The γ-dispersion, also called orientation and extracellular ions. Conductivity then polarization, is located at the GHz region, rises dramatically, due to the dielectric relax- and it is due to the polarization dipoles, ation of water (Rigaud et al. 1996) (Fig. fundamentally free water molecules. The 25.4). β-dispersion or interfacial polarization is This increase in conductivity is associated mainly due to the Maxwell-Wagner effect. with a decrease in permittivity, from very This effect is produced due to interfacial phe-
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