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.
If the medium having a lesser refractive index is air (n = 1.00), the equation reduces to: sin c = 1/n(2) When the critical angle is exceeded for a particular light wave, it exhibits total internal reflection back into the medium.