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a sex when a male is on top of a female
light travels in straight paths called rays
I would call it "the speed of the wave".
The path of least resistence
beamer
rays.
a sex when a male is on top of a female
light travels in straight paths called rays
That is called a light-year.
Light travels through what is fiber optic cabling. The cables are internally filled with long flexible tubes that are made of glass. The laser light travels through an individual glass tubing.
that is one light year
Discontinuous Spectra, Fraunhofer lines
I call it a 'photon'.By the way, the photon has zero rest mass, but when it travels at the speed of light ...which it always does ... it has some mass.
A telephone call travels via two posible methods or both. It can travel over an electrical current via copper wire. It more commonly travels via light through fiber optic cabling.
All electromagnetic radiation travels at the same speed. We usually call it "the speed of light" but it's the same for all other forms of electromagnetic waves.
A vessel that travels underwater is termed a submarine.
I would call it "the speed of the wave".