to letter space diagram of structure
41Typesetting — Text formatting redirects here. For other uses, see Formatted text. Movable type on a composing stick on a type case …
42Photosynthetic reaction centre — A photosynthetic reaction center is a complex of three types of protein that is the site where molecular excitations originating from sunlight are transformed into a series of electron transfer reactions. The reaction center proteins bind… …
43Park51 — An artist s rendering of the proposed Park51 Basic information …
44Neo-Platonism — Eyjólfur K.Emilsson GENERAL INTRODUCTION Neo Platonism is usually defined as the philosophy of Plotinus, who lived in the third century AD, and his followers in the pagan Graeco Roman world in late antiquity. The most significant philosophers… …
45Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …
46Roman Catholicism — the faith, practice, and system of government of the Roman Catholic Church. [1815 25] * * * Largest single Christian denomination in the world, with some one billion members, or about 18% of the world s population. The Roman Catholic church has… …
47Pennsylvania Station (New York City) — New York Pennsylvania Station Entrance, with Madison Square Garden and Penn Plaza in the background. Station statistics …
48Rings of Saturn — The full set of main rings, imaged as Saturn eclipsed the Sun from the vantage of the Cassini spacecraft on 15 September 2006 (brightness is exaggerated). The pale blue dot at the 10 o clock position, outside the main rings and just inside the G… …
49Hanwell Asylum — The (1st Middlesex) County Asylum at Hanwell, also known as Hanwell Insane Asylum, was built for the pauper insane and has evolved to become the West London Mental Health (NHS) Trust (WLMHT). The 2nd Middlesex was Colney Hatch Asylum, opened in… …
50Dark energy — Not to be confused with dark matter, dark fluid, or dark flow. Physical cosmology …
