Take a look at this list of items: the nail, the wheel, the spring, the lens, the magnet, the string, and the pump. What do they have in common? According to structural engineer Roma Agrawal, together ...

How much does a guy have to dislike the creme filling in delicious Oreo cookies that he is inspired to devise an invention as intricate as what you're about to see just to accomplish the desired task ...

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