Take a look at the top of almost any soda can.
Do you see the metal pull tab?
Of course you do.
You’ve probably opened thousands of cans throughout your life without giving it a second thought.
But hidden in plain sight is a small detail that most people overlook completely.
It’s the little hole in the pull tab.
For years, many people assumed it was simply part of the manufacturing process. Others thought it was there to save a tiny amount of metal or reduce production costs.
The truth is much more interesting.
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