It can't.
You do not found C.F.L. bulb in nature as such. So it is an artificial or man made source of light. It consumes very less energy. As it does not gives out heat.
The speed of light IN A VACUUM is always the same. In substances other than the vacuum, the speed of light is usually slower than in a vacuum.
light in a vacuum
light travels faster in vacuum.
No, slower. Light travels fastest in a vacuum. Anything transparent that light can pass through slows it down somewhat. Diamond crystal slows it down notably, which is part of what causes the "fire" in a diamond.
Light requires nothing more than a source for transmission. sound requires a source and a medium to conduct it. In vacuum, there is no conductor for sound.
the sun
they are transverse waves, they can travel through a vacuum,
stupidness and whatever
jelly fish nature sources of light.
The electrical characteristics of free space, and the direction the source is pointing.
because of the nature of source producing it...
You do not found C.F.L. bulb in nature as such. So it is an artificial or man made source of light. It consumes very less energy. As it does not gives out heat.
Light can travel through vacuum, but it is not a medium.
Light can travel through a "vacuum" because the vacuum has a medium to transport light. Light can travel through a vacuum due to its dual nature; it can exhibit behaviours of either particles or waves, depending on the conditions under which it is observed, a situation called "particle/wave duality". A wave would need a medium to propagate (move) through, but a particle is like a tiny bullet, and can move independently (though still affected by) of the medium. In the case of a vacuum (by definition a space containing no matter), light behaves like a particle (called a photon), and moves through it in a straight line, unaffected. If, in that vacuum, it encounters something else, say a diffraction grating, its wave nature appears and it diffracts (spreads out), exactly as a wave would, but a particle would not.
Light does travel through a vacuum.
Yes ... in a vacuum.