| 31. | Stellwag von Carion made contributions in his investigations of glaucoma, refraction.
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| 32. | The method utilizes equipment typically employed in seismic refraction surveys.
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| 33. | Other factors include index of refractions for the three beams.
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| 34. | DNG can provide phase compensation due to their negative index of refraction.
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| 35. | This can produce a negative index of refraction in the optical range.
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| 36. | However, negative refraction does not occur in these systems.
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| 37. | MIR stands for Matched-Index-of-Refraction.
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| 38. | Stellerite has three indices of refraction because it is a biaxial mineral.
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| 39. | Negative refraction was first reported for microwave and infrared frequencies.
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| 40. | A prism's refraction angle varies nonlinearly with wavelength.
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