The modern shopping cart — as we know it — didn't always exist, which meant it had to be invented. The How Curious podcast explores the history of the shopping cart. So listen, when I was a kid, I ...

Of all the decisions faced during a trip to the grocery store — paper, plastic or reusable bags? self-checkout or human interaction? — one has emerged as the most contentious. Where do you leave your ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American It seemed like a simple question: Why don't ...