napisa³ w wiadomo¶ci
...
Szczepan Bialek wrote:


"" In 1817, Young had proposed a small transverse component to light,
while
yet retaining a far larger longitudinal component. Fresnel, by the year
1821, was able to show via mathematical methods that polarization could
be
explained only if light was entirely transverse, with no longitudinal
vibration whatsoever.
From: http://en.wikipedia.org/wiki/Fresnel


Light may also be treated as photons.

Yes. In one chapter as waves and in the next as particles.

But it means only that you do not know what the light is.
S*