attracting particles
61Accretion (astrophysics) — In astrophysics, the term accretion is used for at least two distinct processes.The first and most common is the growth of a massive object by gravitationally attracting more matter, typically gaseous matter in an accretion disc. Accretion discs… …
62Contamination control — is the generic term for all activities aiming to control the existence, growth and proliferation of contamination in certain areas. Contamination control may refer to the atmosphere as well as to surfaces, to particulate matter as well as to… …
63human disease — Introduction an impairment of the normal state of a human being that interrupts or modifies its vital functions. health versus disease Before human disease can be discussed, the meanings of the terms health, physical fitness, illness …
64Charles Darwin's education — gave him a foundation in the doctrine of Creation prevalent throughout the West at the time, as well as knowledge of medicine and theology. More significantly, it led to his interest in natural history, which culminated in his taking part in the… …
65coloration — colorational, adj. colorationally, adv. /kul euh ray sheuhn/, n. appearance with regard to color arrangement or use of colors; coloring: the bold coloration of some birds. [1605 15; COLOR + ATION] * * * ▪ biology Introduction in biology,… …
66Ghana — Ghanaian, Ghanian /gah nee euhn, gan ee /, n., adj. /gah neuh, gan euh/, n. 1. a republic in West Africa comprising the former colonies of the Gold Coast and Ashanti, the protectorate of the Northern Territories, and the U.N. trusteeship of… …
67Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer. The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… …
68Mobbing (animal behavior) — For mobbing in relation to human bullying behavior see Mobbing Crows mobbing a Red tailed Hawk. Mobbing in animals is an antipredator behavior which occurs when individuals of a certain species …
69Aleksandr Lyapunov — Infobox Scientist name = Aleksandr Mikhailovich Lyapunov caption = birth date = birth date|1857|6|6 birth place = Yaroslavl, Imperial Russia death date = death date and age|1918|11|3|1857|6|6 death place = residence = Russia citizenship =… …
70Salem witch trials — Salem Witches redirects here. For the minor league baseball team, see Salem Witches (NEL). The central figure in this 1876 illustration of the courtroom is usually identifie …
