The word “artificial” is often abused. The typical dictionary definition describes artificial as something “made or produced by human beings rather than occurring naturally, especially as a copy of something natural.”
So, we have artificial limbs and artificial flowers, in both cases referring to something created by humans as copies of something natural. The manufactured limb or flower is clearly not natural; it is artificial. The problem comes with expressions such as “artificial light” (“her skin glowed in the artificial light”). Here, the use of “artificial” is incorrect, as it implies that “light” is something that comes “naturally” only from the sun. But light produced using electricity is also light: it is not a copy of light, and therefore it is not artificial light. If one wanted to use the word “artificial” in such a sentence, one would need to say something like: “her skin glowed in the artificial sun.” But this latter construction is also terrible because electric light is not necessarily intended to be a copy of light from the sun. So how about this formulation: “her skin glowed in the electric light” or “her skin glowed in the incandescent light.”
Please: no more artificial light!
And while we’re on the subject, a radio or loudspeaker does not create “artificial” sound.