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Waterways of sufficient depth can be excessively narrow or them is simple can not
To be. The popularity which has saved until now of small courts on some
The Mediterranean trips speaks the same.
What were navigating advantages or defects of the size of courts, with
The economic point of view the size of the ship is limited by the size of the guaranteed
Loadings as all advantages of large courts turn around losses,
When the requirement for carriages consignments is insignificant and irregular. So that the successful
Introduction of large courts in XV century with all definiteness shows that already
Till an epoch of great geographical opening the Intraeuropean trade has created
Guaranteed and a growing demand for transportation services. And if increase
Trade volume raised demand for transport and did favourable building
The big courts, the in itself increase in the sizes of the ships conducted to reduction
Travelling costs and to increase of safety of carriages that stimulated
The further development of trade.
There is a curious similarity between turn approximately in 1500 from
Perfection of coastal navigation to perfection of the ocean
Navigation, and an event approximately at the same time (or it is better to take more exact
Date - 1492?) turn from expansion of the Intraeuropean trade to
To expansion of overseas trade. A compass, for example, used in Europe already in
XIV century. But in XVI century in the attention centre there was a studying local
Magnetic field changes that had essential significance for navigation in
Ocean. It and an astrolabe were known and till 1500, but then them
Applied to measurement of height of coastal reference points and calculation of distances to
Coast. After 1500 they became orientation tools on stars - from them
The help defined sun and North star height over horizon. On
To the present adapted for needs of navigation at ocean of a card of Merkatora have entered in
The general use not earlier than 1600. [The short review of development navigating
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