32 relations: American Museum of Natural History, Astronomer, Astronomy, Buffalo, New York, Clark Wissler, Cleveland, Connecticut, Dendrochronology, Douglass (lunar crater), Flagstaff, Arizona, Hartford, Connecticut, Harvard College Observatory, Impact crater, John A. Eddy, Laboratory of Tree-Ring Research, Lowell Observatory, Mars, National Geographic Society, Oracle, Arizona, Percival Lowell, Rufus B. von KleinSmid, Solar cycle, Steward Observatory, Trinity College (Connecticut), Tucson, Arizona, United States, United States dollar, University of Arizona, University of Arizona Press, Venus, Windsor, Vermont, World War I.
The American Museum of Natural History (abbreviated as AMNH), located on the Upper West Side of Manhattan, New York City, is one of the largest museums in the world.
An astronomer is a scientist in the field of astronomy who concentrates their studies on a specific question or field outside the scope of Earth.
Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.
Buffalo is the second largest city in the state of New York and the 81st most populous city in the United States.
Clark David Wissler (September 18, 1870 – August 25, 1947) was an American anthropologist.
Cleveland is a city in the U.S. state of Ohio, and the county seat of Cuyahoga County.
Connecticut is the southernmost state in the New England region of the northeastern United States.
Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed in order to analyze atmospheric conditions during different periods in history.
Douglass is a lunar impact crater on the far side of the Moon.
Flagstaff is a city in and the county seat of Coconino County in northern Arizona, in the southwestern United States.
Hartford is the capital of the U.S. state of Connecticut.
The Harvard College Observatory (HCO) is an institution managing a complex of buildings and multiple instruments used for astronomical research by the Harvard University Department of Astronomy.
An impact crater is an approximately circular depression in the surface of a planet, moon, or other solid body in the Solar System or elsewhere, formed by the hypervelocity impact of a smaller body.
John Allen "Jack" Eddy (March 25, 1931 – June 10, 2009) was an American astronomer who published professionally under the name John A. Eddy but much of the content referencing him can be found under his nickname Jack which he preferred to use.
The Laboratory of Tree-Ring Research (LTRR) was established in 1937 by A.E. Douglass, founder of the modern science of dendrochronology.
Lowell Observatory is an astronomical observatory in Flagstaff, Arizona, United States.
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.
The National Geographic Society (NGS), headquartered in Washington, D.C., United States, is one of the largest non-profit scientific and educational institutions in the world.
Oracle is a census-designated place (CDP) in Pinal County, Arizona, United States.
Percival Lawrence Lowell (March 13, 1855 – November 12, 1916) was an American businessman, author, mathematician, and astronomer who fueled speculation that there were canals on Mars.
Rufus Bernhard von KleinSmid (1875-July 9, 1964), also spelt Kleinsmidt, was the Seventh President of the University of Arizona (1914–1921) and the Fifth President of the University of Southern California (1921–1947).
The solar cycle or solar magnetic activity cycle is the nearly periodic 11-year change in the Sun's activity (including changes in the levels of solar radiation and ejection of solar material) and appearance (changes in the number and size of sunspots, flares, and other manifestations).
Steward Observatory is the research arm of the Department of Astronomy at the University of Arizona (UA).
Trinity College is a private liberal arts college in Hartford, Connecticut.
Tucson is a city and the county seat of Pima County, Arizona, United States, and home to the University of Arizona.
The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.
The United States dollar (sign: $; code: USD; also abbreviated US$ and referred to as the dollar, U.S. dollar, or American dollar) is the official currency of the United States and its insular territories per the United States Constitution since 1792.
The University of Arizona (also referred to as U of A, UA, or Arizona) is a public research university in Tucson, Arizona.
The University of Arizona Press, a publishing house founded in 1959 as a department of the University of Arizona, is a nonprofit publisher of scholarly and regional books.
Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.
Windsor is a town in Windsor County, Vermont, United States.
World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.