By William D. Siuru
Colour AND BLACK AND WHITE PHOTOS;
THE males in the back of IT
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Extra resources for British Aerospace and McDonnell Douglas AV-8 A/B Harrier - Aero Series 31
Characteristics of Electromagnetic Waves 9 particles of a different frequency from those surfaces. However, when the frequency of the irradiating radiation was decreased the photoelectric effect did not occur. The wave theory of light could not explain this, and thus it was concluded that the EM radiation consisted of quanta and the energy of each quantum was h/λ (where h is Planck’s constant and λ is the wavelength). At low frequencies the wavelength is large and thus the energy of each quantum is small.
34 Contour plots on a spherical surface. Reproduced by kind permission of ASL . See Plate 3 for the colour figure. 35 Mercator’s projection of a contour plot. Reproduced by kind permission of ASL . See Plate 4 for the colour figure. 36 Mercator’s projection of the radiation pattern, showing lines of equal gain/power levels. Reproduced by kind permission of ASL . See Plate 5 for the colour figure. 36. Thus each line represents a single different power level and we would not be able to correlate this plot with a contour plot where a number of power levels have the same colour.
This angle is measured from the axis and direction of propagation to the plane of the polarization ellipse. 23 the tilt axes are shown for two different cases, where the tilt axis is an obtuse angle τ and an acute angle τ . 3 Axial Ratio The axial ratio is sometimes defined by the reciprocal of the ellipticity ρe . 6) where ρe is the ellipticity, and since we get χ= 1 + Eminor /Emajor . 7) The axial ratio χdB in dB is given by χdB = 20 log 1 + Eminor /Emajor 1 − Eminor /Emajor . 9) The ellipticity in terms of the axial ratio can be derived since χ(1 − ρe ) = 1 + ρe χ − χρe = 1 + ρe ρe = χ −1 .
British Aerospace and McDonnell Douglas AV-8 A/B Harrier - Aero Series 31 by William D. Siuru