Chemistry

Coal: A Lesson in Economic Geology

February 1, 2017

Economic geology is the use of materials for the benefit of society. Two such materials, coal and petroleum, comprise 90% of all the energy budgeted in the United States. […]

Chemistry

Building the Periodic Table

January 9, 2017

The periodic table is the chemist’s playground—an icon of science that’s found on classroom walls around the world. It’s one of the most powerful conceptual tools in all of science, yet it didn’t spring forth all at once. […]