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.
Add. Enter the refractive indices of the materials a and b, and the angle (to normal) of the beam in material a. For reference, at 589 nm air has an index of ~1.0003, water of 1.33, acrylic of 1.48, glass of ~1.5, polycarbonate of 1.6, and diamond of 2.4.Refractive index is wavelength-dependant.dd. Enter the refractive indices of the materials a and b, and the angle (to normal) of the beam in material a. For reference, at 589 nm air has an index of ~1.0003, water of 1.33, acrylic of 1.48, glass of ~1.5, polycarbonate of 1.6, and diamond of 2.4.