The Fermilab colloquium introduces staff, students and members of the public to a wide range of scientific and science-related topics presented by notable speakers from across the country and around the world.

Lawrence Weinstein

Old Dominion University

Why don't we all drive electric cars? Does it really matter if you don't recycle that plastic water bottle? If the Sun were made of gerbils, would the Earth be incinerated? How can we answer these questions without relying on experts? This talk will cover the principles of estimating, introduce the "Goldilocks" categories of answers, and then look at some of the big (and small) questions of our time, including: Paper or plastic? Gasoline or electric cars? Should we pee before flying? 1

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