Have you ever wondered just how big your feet would need to be to allow you to walk on water, or how about the amount of time lost in a person’s life for every cigarette smoked? Physicist Lawrence Weinstein (Old Dominion University) answers these brain teasers and many others by using a process called “guesstimation.” Also: David Wright (Tidewater Community College) uses some of the gravity-defying rides at Busch Gardens amusement park to teach the principles of physics. He says an understanding of basic physics helps make sense of the world around us.

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