Man Learn To Sail
(p.naga prasad)
Man learn to sail
Before Man learned to sail
he had to discover the principle of flotatin and this be
probably did by accident noticing how fallen pieces of
trees floate in rivers and lakes, primitive man
experimented by holding on to logs and discovred that they
could support his weight and remain afloat t. He developed
this ?Floating vehicle?by tying logs of wood together with
vites,bundling reeds together,inflating sking of animals or
caving on the pulp of a tree trunk and cutting it in half
to make a dug out or canoe. But then the need for some
form of power to proper his new-found craft resulted in man
developing a crude sail-a pieceof skin or other
naturalmaterial-usually square ?shaped which he attrached
to a rough upright pole,and hoisted above his craft. The
pole was held inositin amidhips by plaited rawhide roer.
It is known that ancient cretans built boats such as this
early as 3000 BC. Although this allowed them to
communicate and trade with other countries
inMediterranean,the shape of sail theyused meant that
theycould only sail before the wind,that is with the wind
behind them. It wasnot until the ninth century after
Christ that the century after Christ that the triangular
latest sail evolved,allowing the boat to sail agains the
wind,that is,heading towards the wind at such an angle that
the boat is still pushed along by it. This was a wonderful
achievement as boats could then be made to travel must
faster,because more control was possible over the directin
in which sailers wanted to sail.
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