1 You have signs of infection, such as: 2  Increased pain, swelling, warmth, or redness around the bite. 3  Red streaks leading from the bite. 4  Pus draining from the bite.  A fever.
A negative index of refraction due to three-dimensional chirality is demonstrated for abilayered metamaterial based on pairs of mutually twisted planar metal patterns in parallel planes, which alsoshows negative electric and magnetic responses and exceptionally strong optical activity and circular dichro-ism.
That change in the refractive index dictates the change in the speed of the wave traveling through that medium, and thus the waves wavelength. Click to expand... I understand that the mentioned phenomena does occur, but my question is why, in an intuitive sense, frequency remains constant while wavelength does not.