Step 5: Choose a device you want to restore Messages to. Select an Android Phone that you want to restore WhatsApp chat history to. Click Confirm to continue. Note: Before restoring messages to Android, please follow the steps on software to backup your current Android WhatsApp data first.
Definition of a Wave. Webster's dictionary defines a wave as: The most important part of this definition is that a wave is a disturbance or variation which travels through a medium. The medium through which the wave travels may experience some local oscillations as the wave passes, but the particles in the medium do not travel with the wave.
A ray is a thin beam of light that travels in a straight line. A wave front is the line (not necessarily straight) or surface connecting all the light that left a source at the same time. For a source like the Sun, rays radiate out in all directions; the wave fronts are spheres centered on the Sun.