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chapter9 - 9 Lighting the way Maps several techniques and...

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1 9. 9.- Lighting the way Lighting the way z Maps: several techniques and devices were designed in order to survey the land to make maps. Elaborated measuring instruments (see video) started to develop in order to make cannons more precise (16 th century). z In 1579 (43 years after Henry VIII’s dissolved the monasteries) Christopher Saxton was the first to publish accurate maps of England (all this resulting from the need to sell the monasteries). John Norden put the roads on the maps in 1592. z Variations of the Triangulation method were used to make measurements. A better source of light was needed. z Limelight was invented: a flame (alcohol ignited in a jet of oxygen) heats up a small ball of lime (CaO) and the light is reflected off a parabolic mirror. Brighter than the lamps at the time by a factor of 83. The cannon was invented over 500 years ago. Henry VII’s disagreement with the Pope’s decision to deny his divorce from Katherine of Aragon generated a separation from the Catholic church, which led to the dissolution of the monasteries and also influenced religion in the kingdom.
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