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"necessity is the mother of invention." -------- "Aditya kachua"

Tho, AC is the best invention of Mankind.

What do you think what is humanity's worst invention?

I have a great new invention idea.but I not able to proceed. I need funding otherwise I want to sale my idea here is anyone?

What do you think is the greatest invention of humanity?

mere pass ek Aisa invention project h jo pure world me 24×7 free electricity produce karega is invention se zero fule zero global warming hoga and is invention se all electricity problem khatm ho jayega,isse solar system khatm ho jayega, Diesel ingne

What is the greatest invention of the 21st century so far?

That's not gonna help now

maybe that's why its not working 😢

One could argue that the invention of the iPhone led to the decline of fertility rate in the US.