پاتوق تنهایی
it begins with the story of the raven in a drought. this wise bird, found water low down in a hollow
tree, but unable to inter the narrow passage that led to the water.in this predicament it would have died of thirst, if it had not thought of raising the level of the water by dropping many stones one after another into the hollow of the tree.


necessity is the mother of inventions. had it not been for necessity we would still be living in the stone age.
the necessity of defence against wild beasts taught primitive man to make flint-heads weapons to invent blow-pipe and bow-and-arrow.

in this and many other ways we may imagine that most of early inventions of mankind were the result of the pressure of the need.


when you need to do some thing that has never been done, you will find a way to do it.When there is a will there is a way.

there are also wonderful inventions that have been made by men whose chief object was the satisfaction of their intellectual curiosity. it can not been said that any imperious necessity led to the invention of the photographic camera.

curiosity has been driving force behind most of the inventions, discovery and adventures in the history of mankind.

the match

In 1826 an English researcher, Johan Woker, made a mixture in his lab that made his lab dirty. trying to clean up it was ignited. this is the story of the invention of the match.

microwave

Percy Spencer, an engineer, in 1945 he was fiddling with a microwave.when he felt an strange sensation in his pants, he paused and found a chocolate bar in his pocket that had started to melt.figuring that the microwave radiation was blame on, Spencer immediately realized the culinary potential at work. the end result was the microwave oven.

the U.S

were it not for the curiosity of Christopher Columbs, there would be no United States.

To sum up in one sentence: if necessity is the mother of invention, then curiosity is it's father.
 





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