One of our favorite stories in the latest issue of Popular Science is an excerpt from Mary Roach's new book Gulp: Adventures on the Alimentary Canal. The story examines the billion-dollar science of convincing dogs and cats to eat their food. We're holding a live chat with the author tomorrow, March 28, at noon EST. Hope you can join us! If not, feel free leave questions in the comments below, and we'll make sure she gets the best ones.
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For our annual How It Works issue, we break down everything from the massive Falcon Heavy rocket to a tiny DNA sequencer that connects to a USB port. We also take a look at an ambitious plan for faster-than-light travel and dive into the billion-dollar science of dog food.
Plus the latest Legos, Cadillac's plug-in hybrid, a tractor built for the apocalypse, and more.

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Crazy timing. I just finished doing the voiceover for her Amazon Book trailer a couple of hours ago.