drop hypothesis
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Aether drag hypothesis — In the 19th century, the theory of the luminiferous aether as the hypothetical medium for the propagation of light, was widely discussed. An important part of this discussion was the question concerning the state of motion of Earth with respect… … Wikipedia
PAH world hypothesis — The PAH world hypothesis is a speculative hypothesis that proposes that polycyclic aromatic hydrocarbons (PAH), assumed to be abundant in the primordial soup of the early Earth, played a major role in the origin of life by mediating the synthesis … Wikipedia
Controlled demolition hypothesis for the collapse of the World Trade Center — The controlled demolition hypothesis is a 9/11 conspiracy theory that claims the complete structural failure of the World Trade Center towers was not caused by the plane crash damage that occurred as part of the September 11, 2001 attacks, nor by … Wikipedia
Critical period hypothesis — The critical period hypothesis is the subject of a long standing debate in linguistics and language acquisition over the extent to which the ability to acquire language is biologically linked to age. The hypothesis claims that there is an ideal… … Wikipedia
Critical Period Hypothesis — See also: Language acquisition#Critical Period hypothesis The Critical Period Hypothesis refers to a long standing debate in linguistics and language acquisition over the extent to which the ability to acquire language is biologically linked to… … Wikipedia
Ida Noddack — (25 February 1896 1978), née Ida Tacke, was a German chemist and physicist. She was among the first physicists to propose nuclear fission. With her husband Walter Noddack she discovered element 75 Rhenium. Background Ida Noddack was born in Wesel … Wikipedia
Menopause — Change of Life redirects here. For the Eureka Seven episode, see Change of Life (Eureka Seven). For the Goodies episode, see Change of Life (The Goodies). Menopause Classification and external resources ICD 10 N95.0 ICD 9 … Wikipedia
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… … Universalium
physical science, principles of — Introduction the procedures and concepts employed by those who study the inorganic world. physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding… … Universalium
test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… … Medical dictionary