Photos: Left, Al Barry/Three Lions/Getty Images; Right, William R. Minten/iStockphoto
A wired hands-free phone headset in 1950 still kept you tethered to the wall, but today we’re all wireless and hands-free.
When a new idea comes along, people often don’t know what to make of it. That's why so many inventions begin as light diversions and reach the development stage only much later, when applications finally suggest themselves. In this view, though necessity is still the mother of invention, whimsy is just as assuredly its father.
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