Guest: Dr. Paulina Rowińska is a mathematician, writer, science journalist and author of Mapmatics: A Mathematician's Guide to Navigating the World. Transcripts for each episode are available within 1 ...

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Psychology news. Read today's psychology research on relationships, happiness, memory, behavioral problems, dreams and more. Also, psychology studies comparing humans to apes.

Magnitude scales can be used to describe earthquakes so small that they are expressed in negative numbers. The scale also has no upper limit. Learn more about how we measure earthquake magnitude.