Shana Kushner Gadarian is associate professor of political science at the Maxwell School in Syracuse University, and with Sara Wallace Goodman and Thomas Pepinsky, the author of
Pandemic Politics: How COVID-19 Revealed the Depths of American Polarization, which is under contract with Princeton University Press.
Jeanne-Marie Jackson is associate professor of English at Johns Hopkins University and the author, with Princeton University Press, of The African Novel of Ideas: Philosophy and Individualism in the Age of Global Writing (2021).
Gillen D’Arcy Wood is professor of environmental humanities and English at the University of Illinois, Urbana-Champaign, where he serves as associate director of the Institute for Sustainability, Energy, and the Environment. He is the author of
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A new study provides the best evidence yet for a hidden layer deep within Earth’s solid inner core.
Earth’s inner core, made of solid iron and nickel, is roughly two-thirds the size of the moon. The researchers used machine learning to pinpoint the most accurate model of the strange physical processes that shape our planet s inner core.
Earth’s core is a strange, strange place. For decades, scientists have suspected that, like Matryoshka stacking dolls, there may be an additional hidden layer within our planet’s solid iron and nickel inner core.
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Now, a new study has provided the strongest evidence yet for this mysterious layer what researchers have dubbed Earth’s
The Tambora volcano in Indonesia erupted in 1815, causing global climate change and economic disruption, which by 1819 had led new settlers to the Sangamon country. Sangamon County s humble beginnings seem so distant as we approach the bicentennial of the founding of the county on Jan. 30, 1821. Our founders owed their survival largely to the fertile soils created by glaciation, primarily during the Illinoian Period of 191,000 to 130,000 years ago. Native Americans introduced early settlers to corn and several varieties of squash, which became dietary essentials. And the utilization of corn in distillation of alcohol became one of the most traded items and facilitated economic exchanges when other forms of currency were scarce. Honey from wild bee populations substituted for cane sugars and was commonly traded. The Sangamon River and its tributaries, prairie grasses and stands of timber greeted new arrivals. Timber margins extended u