The American Chestnut

by Donald Edward Davis

2021 · University of Georgia Press

Before 1910 the American chestnut was one of the most common trees in the eastern United States. Although historical evidence suggests the natural distribution of the American chestnut extended across more than four hundred thousand square miles of territory—an area stretching from eastern Maine to southeast Louisiana—stands of the trees could also be found in parts of Wisconsin, Michigan, Washington State, and Oregon. An important natural resource, chestnut wood was preferred for woodworking, fencing, and building construction, as it was rot resistant and straight grained. The hearty and delicious nuts also fed wildlife, people, and livestock. Ironically, the tree that most piqued the emotions of nineteenth- and early twentieth-century Americans has virtually disappeared from the eastern United States. After a blight fungus was introduced into the United States during the late nineteenth century, the American chestnut became functionally extinct. Although the virtual eradication of the species caused one of the greatest ecological catastrophes since the last ice age, considerable folklore about the American chestnut remains. Some of the tree’s history dates to the very founding of our country, making the story of the American chestnut an integral part of American cultural and environmental history. The American Chestnut tells the story of the American chestnut from Native American prehistory through the Civil War and the Great Depression. Davis documents the tree’s impact on nineteenth-and early twentieth-century American life, including the decorative and culinary arts. While he pays much attention to the importation of chestnut blight and the tree’s decline as a dominant species, the author also evaluates efforts to restore the American chestnut to its former place in the eastern deciduous forest, including modern attempts to genetically modify the species.

Celestial Sleuthing

by Donald W. Olson

2026 · Springer Nature

Many mysteries in art, history, and literature can be solved using “celestial sleuthing,” including calculating phases of the Moon, determining the positions of the planets and stars, and identifying celestial objects in paintings. In addition to helping to crack difficult cases, such studies spark our imagination and provide a better understanding of the skies. This book shows how weather archives, vintage maps, historical letters and diaries, military records, and site visits aid the work. For each artwork, historical event, or literary passage influenced by astronomy, there is a different kind of mystery to be solved. For example, how can the position of the Sun and Moon determine the date and time of famous paintings by Vincent van Gogh and Caspar David Friedrich? How can astronomy determine a precise date for a work by Wassily Kandinsky, a painter best-known for abstract works with geometrical shapes and dramatic colors? What important battle of ancient history caused a design change with a crescent Moon added to the silver tetradrachms of Athens? In what season did Sappho write her iconic work, "The Midnight Poem"? Did observers actually report five Moons simultaneously in the sky during the time of King John, as recorded in lines from Shakespeare's play? Follow these exciting investigations with Donald Olson, a master “Celestial Sleuth,” as he tracks down the truth and helps unravel mysteries as far back as ancient history and as recent as World War II.

Fundamentals of Astrodynamics

by Roger R. Bate, Donald D. Mueller, Jerry E. White

1971 · Courier Corporation

Teaching text developed by U.S. Air Force Academy and designed as a first course emphasizes the universal variable formulation. Develops the basic two-body and n-body equations of motion; orbit determination; classical orbital elements, coordinate transformations; differential correction; more. Includes specialized applications to lunar and interplanetary flight, example problems, exercises. 1971 edition.