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You are browsing the archive for Q&A.

11 October 2018

Q&A, episode 6

A reader asks about Callan’s source of inspiration, a fitting question given the advent of Earth Science Week, which this year has as its theme “The Earth as Inspiration.” Brace yourself for a tantalizing cavalcade of gorgeous images of patterns in rocks!

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22 August 2018

Q&A, episode 5

A reader asks: “What is foliation and what makes it so important to the structure of rock?”
Callan answers with a lot of images of beautifully foliated rocks.

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8 March 2017

Q&A, episode 4

Who are “the 3%?” A reader question prompts a conversation with “Skeptical Science” guru and cognitive scientist John Cook.

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21 February 2017

Q&A, episode 3

A reader asks about the use of zircons in isotopic dating, and the argument for submerged continental crust beneath Mauritius.

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13 February 2017

Q&A, episode 2

A new edition of “science and nature question and answer.” This week: why Massanutten Mountain isn’t longer, and why you’re never going to walk on the Sun.

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6 February 2017

Q&A, episode 1

A new series takes science and nature questions and answers them. Read the answers to the first two questions and submit your own!

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