optical power spectrum
51Photodiode — Three Si and one Ge (bottom) photodiodes Symbol for photodiode …
52List of cycles — This article does not deal with types of bicycles, for that see Bicycle#Types and Category:Cycle types. This is a list of recurring cycles. See also list of wave topics, time, and pattern. Contents 1 Time and calendar cycles 2 Planetary cycles …
53Evolution of the eye — The evolution of the eye has been a subject of significant study, as a distinctive example of a homologous organ present in a wide variety of taxa. The development of the eye is considered by some experts to be monophyletic; that is, all modern… …
54Two-photon absorption — (TPA) is the simultaneous absorption of two photons of identical or different frequencies in order to excite a molecule from one state (usually the ground state) to a higher energy electronic state. The energy difference between the involved… …
55Physical cosmology — This article is about the physics subject. For other uses, see Cosmology. Physical cosmology …
56Dither — For other uses, see Dither (disambiguation). Provincial definition of to dither from The Rural Economy of Yorkshire: Comprizing the Management of Landed Estates, and the Present Practice of Husbandry in the Agricultural Districts of that County,… …
57Observational cosmology — Physical cosmology Universe · Big Bang …
58Intraocular lens — An intraocular lens (IOL) is an implanted lens in the eye, usually replacing the existing crystalline lens because it has been clouded over by a cataract, or as a form of refractive surgery to change the eye s optical power. It usually consists… …
59Dan D. Yang — Dan D. Yang, PhD, is the founder of Rullingnet Corp. and inventor of VINCI,[1] a new category of learning systems by converging developmental science, technology and early childhood education. Contents 1 Early Life 2 Career 3 Entrepreneurial… …
60Dark matter — Not to be confused with antimatter, dark energy, dark fluid or dark flow. For other uses, see Dark Matter (disambiguation) …
