In circular polarization the electric vector rotates about the direction of propagation as the wave progresses.
In addition to diffraction, a pulsed beam exhibits a broadening effect along its direction of propagation.
The triangulation technique was used to derive the true direction of propagation of this feature.
These components oscillate at right angles to each other and to the direction of propagation.
This direction reversal of the fields does not change the direction of propagation along the conductors.
In a longitudinal wave the oscillating disturbance is parallel to the direction of propagation.
The plane is perpendicular direction of propagation (e.g., the ecliptic or RN planes in heliocentric radial-tangential-normal, RTN, coordinates).
The combined motions result in the advance of alternating regions of compression and rarefaction in the direction of propagation.
Longitudinal sound waves (with displacements parallel to the direction of propagation) have speeds different from transverse waves (with displacements perpendicular to the direction of propagation), as is the case for all matter.
Sound speeds usually vary depending on the direction of propagation relative to axes of high rotational symmetry.
Atmospheric refraction, change in the direction of propagation of electromagnetic radiation or sound waves in traversing the atmosphere.
