Timothy O’Sullivan

Photographer Timothy O’Sullivan (first image), born c. 1840, died on January 14, 1874. He began his career as an apprentice in Matthew Brady’s New York City studio in the late 1850s, and later worked for Alexander Gardner in the 1860s, traveling with the Union army to...

Albertus Magnus

Albertus Magnus, a German scholastic philosopher, died Nov. 15, 1280, at an age over 80; his date of birth is not known.  By any measure, Albertus was the greatest natural scientist of the Middle Ages.  His work began, as did all nearly all medieval scholarship, as a...

A Deeper Dive: The Scientific Study of the Plate Tectonics History of the World

The class will meet November 5, 12, and 19 from 7:00 p.m. to 8:00 p.m. at the Johnson County Community College Regnier Center, Room 101D. Registration is for all three classes.

In this three-part Deeper Dive course, geologist Bill Shefchik will explore at a rather intense level some of the brilliant scientific tools used by geologists to understand the formation of the crust, the motions of plates, and the consequences of plate collisions. The foundation of the three classes will be the three-billion-year-old rocks of northern Scotland, which preserve vivid, visible evidence of more collisions than almost anywhere else in the world.

We have reached our seating capacity for this event.  If you are unable to attend the lecture in person, you can watch a live broadcast from the Library’s Facebook page or via livestream.com.

Nicolas Desmarest

Nicolas Desmarest, a French geologist and cartographer, was born Sep. 16, 1725. When Desmarest began his career, it was thought that basalt formations, such as the Giant’s Causeway in Ireland, were sedimentary deposits. In 1763, Desmarest began mapping the Auvergne...

John White Webster

John White Webster, an American geologist and chemist, was born May 20, 1793.  He graduated from Harvard Medical College in 1815, and would return there as professor, but in between, he visited St. Michael (Sao Miguel) Island in the Azores in 1817-18.  There he...