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News results for phase
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A phase is one point or portion in a recurring series of changes. Phase or phases may also refer to: In science and engineering Phase (matter), a physically distinctive form of a substance, such as the solid, liquid, and gaseous states of ordinary matter Phase transition is the transformation of...
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The United States Naval Observatory (USNO) Moon phase display for the years 1800 through 2199. Current Phase of the Moon: Updates every 4 hours):
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Encyclopedia: Lunar phase
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The phase of an oscillation or wave is the fraction of a complete cycle corresponding to an offset in the displacement from a specified reference point at time t = 0. Phase is a frequency domain or Fourier transform domain concept, and as such, can be readily understood in terms of simple harmonic...
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Phase denotes the particular point in the cycle of a waveform, measured as an angle in degrees. It is normally not an audible characteristic of a single wave (but can be when we using very low-frequency waves as controls in synthesis).
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phase In thermodynamics , a chemically and physically uniform quantity of matter that can be separated mechanically from a nonhomogeneous mixture The states in which matter can exist: as a solid, liquid, or gas. When temperature changes, matter can undergo a phase change, shifting from one form to another.
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The phase difference is <= 90 degrees. It is sometimes helpful to treat the phase as if it defined a vector in a plane. The usual reference for zero phase is taken to be the positive x-axis and is associated with the resistor since the voltage and current associated with the resistor are in phase.
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If heat were added at a constant rate to a mass of ice to take it through its phase changes to liquid water and then to steam, the energies required to accomplish the phase changes (called the latent heat of fusion and latent heat of vaporization ) would lead to plateaus in the temperature vs time graph.
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