Why do potato chips bags always have plenty of air inside? Don't be mad about their designers thinking they're just trying to make the bag seem full. It turns out, potato chips are actually that tasty thanks to that air! Not only does it protect the chips from breaking during transportation but also keeps them fresh for longer... Let's see how it works.

Here're 30+ hidden secrets about everyday objects surrounding us. Why do crackers have holes in them? Are margins on paper designed for writing in dates and numbering lists? And what’s the difference between a wooden hanger and a plastic one? You'll find the answers to these and more questions in this video.

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