LQ Podcast

#40 Crack in World Found at Sea!

Thursday, June 27, 2013

So said the New York Times headline when geologist Marie Tharp discovered the Mid-Atlantic Ridge, the gash in the earth that proved the theory of continental drift and helped establish the field of plate tectonics. Tharp made this discovery while producing the first comprehensive maps of the ocean floor. Author Hali Felt, who chronicled Tharp’s life in her book, Soundings, spoke to LQ about this remarkable and overlooked scientist. 

Discussed in this episode

More Podcasts

June 14, 2025

The World in Time:

Episode 2: Lewis H. Lapham, Part Two

“Lewis understood that without the past, we lose the ability to think productively or even understand the present.” More

March 04, 2022

The World in Time:

Roosevelt Montás

Lewis H. Lapham speaks with the author of Rescuing Socrates: How the Great Books Changed My Life and Why They Matter for a New Generation. More

May 27, 2022

The World in Time:

Eric Jay Dolin

Lewis H. Lapham speaks with the author of Rebels at Sea: Privateering in the American Revolution. More

December 22, 2021

The World in Time:

David Wengrow

Lewis H. Lapham speaks with the coauthor of The Dawn of Everything. More

The 7th New York Militia Regiment marches down Broadway, an illustration from Harper’s Weekly, 1861.

August 18, 2017

The World in Time:

John Strausbaugh

Lewis H. Lapham talks with John Strausbaugh, author of City of Sedition: The History of New York City During the Civil War. More

April 05, 2019

The World in Time:

Philipp Blom

Lewis H. Lapham talks with Philipp Blom, author of Nature’s Mutiny: How the Little Ice Age of the Long Seventeenth Century Transformed the West and Shaped the Present. More