Age groups in Scouting and Guiding - Asia - Thailand

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Structured data parsed from Wikipedia. Thailand

Data Source : WIKIPEDIA
Number of Data columns : 3 Number of Data rows : 4
Categories : economy, demography, politics, knowledge

Dataset

Data row number - 5 6

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Data Columns

Name Description Data Type
- text
5 text
6 text

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Lüe - Démographie

From WIKIPEDIA

Structured data parsed from Wikipedia. Démographie Évolution de la population   Évolution de la population  , suite (1) Évolution de la population  , suite (2)

demographie, lue, evolution, population, suite

Antikythera mechanism - Mechanism - Gearing

From WIKIPEDIA

Structured data parsed from Wikipedia. Gearing The mechanism is remarkable for the level of miniaturisation and the complexity of its parts, which is comparable to that of fourteenth century astronomical clocks. It has at least 30 gears, although mechanism expert Michael Wright has suggested that the Greeks of this period were capable of implementing a system with many more gears. There is much debate as to whether the mechanism had indicators for all five of the planets known to the ancient Greeks. No gearing for such a planetary display survives and all gears are accounted for—with the exception of one 63 toothed gear (r1) otherwise unaccounted for in fragment D. The purpose of the front face was to position astronomical bodies with respect to the celestial sphere along the ecliptic, in reference to the observer's position on the Earth. That is irrelevant to the question of whether that position was computed using a heliocentric or geocentric view of the solar system; either computational method should, and does, result in the same position (ignoring ellipticity), within the error factors of the mechanism. Ptolemy's epicyclic Solar System (still 300 years in the future from the apparent date of the mechanism), carried forward with more epicycles, was more accurate predicting the positions of planets than the view of Copernicus, until Kepler introduced the possibility that orbits are ellipses. Evans et al. suggest that to display the mean positions of the five classical planets would require only 17 further gears that could be positioned in front of the large driving gear and indicated using individual circular dials on the face. Tony Freeth and Alexander Jones have modelled and published details of a version using several gear trains mechanically similar to the lunar anomaly system allowing for indication of the positions of the planets as well as synthesis of the Sun anomaly. Their system, they claim, is more authentic than Wright's model as it uses the known skill sets of the Greeks of that period and does not add excessive complexity or internal stresses to the machine. The gear teeth were in the form of equilateral triangles with an average circular pitch of 1.6 mm, an average wheel thickness of 1.4 mm and an average air gap between gears of 1.2 mm. The teeth probably were created from a blank bronze round using hand tools; this is evident because not all of them are even. Due to advances in imaging and X ray technology it is now possible to know the precise number of teeth and size of the gears within the located fragments. Thus the basic operation of the device is no longer a mystery and has been replicated accurately. The major unknown remains the question of the presence and nature of any planet indicators.:8 8 A table of the gears, their teeth, and the expected and computed rotations of various important gears follows. The gear functions come from Freeth et al. (2008) and those for the lower half of the table from Freeth and Jones 2012. The computed values start with 1 year/revolution for the b1 gear, and the remainder are computed directly from gear teeth ratios. The gears marked with an asterisk (*) are missing, or have predecessors missing, from the known mechanism; these gears have been calculated with reasonable gear teeth counts.

mechanism, gear, gearing, computed, circular

2010–11 Football Conference - Conference North - League table

From WIKIPEDIA

Structured data parsed from Wikipedia. League table

table, league, conference, north, 11