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- Human brain (15406 bytes)
13: ...gy]] used by the [[body]]. (In [[infant]]s, it consumes about 60%.) This generates a lot of [[heat]],...
15: ...atter]] and separated by a prominent [[central fissure]]. A well-developed [[cerebellum]] is visible a...
19: The blood supply to the brain involves several [[artery|arteri...
21: ... that weighs 1,500 g in air weighs only 50 g when suspended in CSF. (Livingston, 1965). Fluid movement...
23: ...[[hydrocephalus]]. Increased fluid pressure can result in permanent brain injury and death. - Retina (13061 bytes)
5: ...ts light, it also plays a significant part in [[visual perception]]. In [[embryonal development]], the...
12: .... It appears as an oval white area of 3 mm<sup>2</sup>. Temporal (in the direction of the temples) to ...
29: ...eate action potentials. In the photoreceptors exposure to light hyperpolarizes the membrane in a serie...
31: ...et" ganglion cells), and those showing non-linear summation are Y cells (also called "magnocellular, "...
33: In the transfer of signal to the brain, the [[visual pathway]], the retina is vertically divided in ... - History of science (41710 bytes)
13: A major subject of concern and controversy in the [[philosop...
23: ...conditions in an experiment could never produce results that would describe nature as it was in the wo...
27: ... time to be devoted to tasks other than survival, such as the search for knowledge for knowledge's sak...
40: ...rt, literature and religious [[iconography]]) was suppressed while at the same time it was safeguarded...
52: ...reek philosophy was able to find some short-lived support by the newly created Arab [[Caliphate]] (Emp... - List of inventors (14020 bytes)
101: ...tthews]], (1880-1941) — various products, & supposed [[death ray]]
115: ...John Philip Holland]], (1840-1914) — "true" submarine
154: ... Estarriol]], (1819-1885) — steam powered [[submarine]]
184: ...x]], (1806-1894), [[United States|USA]] — [[sugar]] processing
211: ...formalisation of the concept of [[algorithm]] and computation: the [[Turing machine]]. - Galileo Galilei (33761 bytes)
2: ...'s First Law: Law of Inertia|law of motion]], and supporting [[Nicolaus Copernicus|Copernicanism]] eff...
10: ...to authority (like the Church) or other thinkers (such as [[Aristotle]]) in matters of science and to ...
12: ...alling bodies, for instance, required accurate measurements of time, which appeared to be impossible w...
14: ...e experiments and even indicated the particular results that led to the time-squared law (Drake, 1973)...
24: ... Venus proved that Venus orbited the Sun and lent support to (but did not prove) the [[heliocentric mo... - Mathematics (24164 bytes)
1: ...oning]], from [[counting]], [[calculation]], [[measurement]], and the study of the [[shape]]s and [[mo...
8: ...lly followed [[arithmetic]] (e.g. [[addition]], [[subtraction]], [[multiplication]] and [[division (ma...
12: ...e three needs can be roughly related to the broad subdivision of mathematics into the studies of ''str...
15: ...d it and can be applied to solve problems in that subject. Mathematics which can be so used is called ...
16: ..., as in a unifying [[generalization]] for several subfields, or in a helpful tool for common [[calcula... - Abacus (7218 bytes)
5: The '''suanpan''' of the [[China|Chinese]] is similar to th...
8: ...imal and hexadecimal computation. The beads are usually rounded and made of a hard wood. The beads a...
10: ...ivision (mathematics)|division]], [[addition]], [[subtraction]], [[square root]] and [[cube root]] ope...
28: Computations are made by means of beads which would probably ...
35: ... 1920s. The rods (number of digits) increase to usually 21, 23, 27 or even 31, thus allow calculation... - List of computing topics (15876 bytes)
135: [[Big Mac (supercomputer)|Big Mac]] --
185: [[Computational complexity theory]] --
186: [[Computation]] --
232: [[Digital visual interface]] --
316: [[Interactive computation]] - Charles Babbage (13539 bytes)
36: ...tled "Note on the application of machinery to the computation of astronomical and mathematical tables."[http://...
44: ...e continual difficulty getting money from the treasury.
46: ...d that Clement draw his pay directly from the treasury. Before then, Babbage would get money from the...
57: ... to obtain funding from the First Lord of the Treasury, Babbage approached Sir [[Robert Peel]] for fun...
59: ...bbage, translated the paper into English. Charles suggested that she add notes to accompany the paper.... - Platypus (21900 bytes)
18: ... an adaptation on the part of the small number of surviving species to harsh environmental conditions,...
22: ...re around one-third larger than females. There is substantial variation in average size from one regio...
35: ...ented the female swimming underneath the male and surfacing behind him. Finally, the fifth recorded in...
38: ...ich are slightly rounder than bird eggs. Females usually lay two eggs at a time, but sometimes they la...
41: ... platypuses to lap up the milk. The offspring are suckled for three to four months after they have hat... - Hipparchus (astronomer) (50785 bytes)
4: ... Hipparchus. However, his synthesis of astronomy superseded Hipparchus's work: although Hipparchus wr...
16: ...n what Hipparchus' economic means were and how he supported his scientific activities. Also his appea...
20: ...y of a copy may have been preserved in the oldest surviving celestial globe accurately depicting the c...
22: ... Alexandria. Hipparchus writings had been mostly superseded by those of Ptolemy, so later copyists ha...
32: ...abylonische Mondrechnung'' ("The Babylonian lunar computation", Freiburg im Breisgau, 1900) the following. Pto... - Hipparchus (50784 bytes)
3: ... Hipparchus. However, his synthesis of astronomy superseded Hipparchus's work: although Hipparchus wr...
15: ...n what Hipparchus' economic means were and how he supported his scientific activities. Also his appea...
19: ...y of a copy may have been preserved in the oldest surviving celestial globe accurately depicting the c...
21: ... Alexandria. Hipparchus writings had been mostly superseded by those of Ptolemy, so later copyists ha...
31: ...abylonische Mondrechnung'' ("The Babylonian lunar computation", Freiburg im Breisgau, 1900) the following. Pto... - History of chemistry (8174 bytes)
8: ...(accidental) synthesis of [[urea]] from inorganic substances in [[1828]]. Never before had an organic ...
12: ...[[Wilhelm Ostwald]] and [[Ernst Mach]]. Although such proponents of the atomic theory as [[Amedeo Avo...
14: ...st Rutherford]], who established the study of the substructure of the atom as a branch of [[physics]],...
23: ... production of refined materials provided a ready supply of products which not only provided energy, b...
27: ...produce a fusion in [[theory]] between atomic and subatomic physics on the one hand, and chemistry on ... - Physics (25628 bytes)
2: ...] in a wide variety of contexts, ranging from the sub-nuclear particles from which all ordinary matter...
4: ...hich are accurately described by areas of physics such as [[quantum mechanics]], [[thermodynamics]], a...
12: ...orms of research <sup id="fn_1_back">[[#fn_1|1]]</sup>.
13: In contrast, almost all the successful theorists in [[biology]] and [[chemistry]...
15: ...imental results and successfully predict future results, while experimentalists devise and perform exp... - Neural network (3735 bytes)
11: ...ted nodes, or 'neurons,' each performing a simple computation. There are three types of layers:
14: *Hidden Layers: Perform computations and feature extractions.
15: *Output Layer: Produces the final result or prediction.
26: ... future events, like stock market movements or consumer behavior.
36: ... growing need for regulations and guidelines to ensure these technologies are used responsibly.
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