Because once you get frisked at the airport for your liquids, they take them all off you.
And you talk about all the liquids you encounter on the flight. In fact, your book is based on a sort of a flight. MARK MIODOWNIK: And peanut butter, they confiscate. And then suddenly, whoa, liquids were enemy number one. Because of course airport control, the security, they are really up on liquids, aren’t they? And we’ve all lived through this.īecause they didn’t seem to be bothered about liquids about 15 years ago. And actually, that was one of the kind of spurs of writing this book. And I got it confiscated from my luggage. And in fact, I didn’t either until I was going through airport control. It’s interesting you brought up peanut butter because we don’t think of peanut butter as a liquid. This is Science Friday from WNYC Studios, talking with Mark Miodownik, author of Liquid Rules. And they seem to sit somewhere between a solid and a liquid, right? But is the gel I use on my hair? Is that a liquid? Or is peanut butter a liquid? And you start thinking about these other substances. And if it flows into a container, it takes the shape of that container.īut quite quickly, your listeners are probably thinking, well, that works for water, or beer, milk, orange juice, gasoline. The normal definition is a liquid is a substance that will flow. Well, I mean, this is the strange thing is you’d think that would be a very easy question to answer, wouldn’t you? And actually, doing the research for the book, that’s the one question I found increasingly difficult to answer. He’s professor of materials and society there.
He’s also director of the Institute of Making at the University College London. Mark Miodownik is the author of Liquid Rules. And he tackles them in his new book, Liquid Rules: The Delightful and Dangerous Substances That Flow Through Our Lives. Well, my next guest has taken some time to think about those and other questions. How often do we take a moment to think about how the liquids work and what makes one liquid different from another? What makes one slippery, another sticky? What makes one a good salad dressing, but another good rocket fuel? What do these things share in common? Of course, chances are liquids of some kind were all involved. Maybe a gas-powered vehicle was involved. You checked the time, a shower, some coffee, maybe a glass of juice.
IRA FLATOW: Think back to the start of your day.
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