Why was the lightbulb invented? Why was the steam engine invented?
Different questions with the same answer : if the invention was never needed (necessary), it wouldn't have been invented.
necessity is the mother of invention
It is "Necessity is the mother of invention"
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Necessity is the mother of invention.
"necessity is the mother of invention"This means that solutions to problems (the invention bit) are born out of then need for a solution (the necessity).As coming up with an idea is said to be the birth of an idea, this leads to the mother reference in the quote i.e. the need is the mother that gives birth to the idea for a solution.
Necessity is the mother of invention. You must know you have a need, a driving force. There are time when advancements are made by mistakes but those are few and far between.
The most famous example is this: necessity is the mother of invention. Another example: if you live in a cold climate, warm clothing is a necessity.