Earth Sciences

Introduction to DETERMINATION OF LATITUDE BY FRANCIS DRAKE ON THE COAST OF CALIFORNIA IN 1579

Ecology and Systematics Research
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The National Map is a consistent framework for geographic knowledge needed by the Nation. It provides public access to high-quality, geospatial data and information from multiple partners to help inform decisionmaking by resource managers and the public. The National Map enhances America's ability to access, integrate, and apply geospatial data at global, national, and local scales.

Weather Underground is committed to delivering the most reliable, accurate weather information possible. Our state-of-the-art technology monitors conditions and forecasts for over 60,000 U.S. and international cities, so you'll always find the online weather information that you need.

A guide to sources chronicling the history of science, invention, medicine and technology in colonial America. This compilation, an update of TB 74-4, provides references to a variety of materials and sources in the collections of the Library of Congress useful in researching science and technology in eighteenth-century America. Not intended to be a comprehensive bibliography, this guide is designed--as the name of the series implies--to put the reader "on target."

The IPL has a special collection in KidSpace that serves as a resource on American presidents. Presidents of the United States or POTUS provide biographies, election results, and key facts about our nation's leaders. To find out about your favorite president, visit POTUS.

By about 3000 BC, the Sumerians were drawing images of tokens on clay tablets. At this point, different types of goods were represented by different symbols, and multiple quantities represented by repetition. Three units of grain were denoted by three 'grain-marks', five jars of oil were denoted by five 'oil-marks' and so on.

Anaximandros of Miletos was a companion or pupil of Thales. According to Apollodoros he was born in the second or third year of the forty-second Olympiad (611-610B.C.). Of his life little is known; Zeller infers from the statement of Aelian (V.H. iii. 17) to the effect that he led the Milesian colony into Apollonia, that he was a man of influence in Miletos. He was a student of geography and astronomy; and various inventions, such as the sundial, are attributed to him. His book, which was referred to as the first philosophical treatise in Greece, may not have received the title "GREEK" until after his death. It soon became rare, and Simplicius does not seem to have had access to it.

THEY who have presumed to dogmatize on Nature, as on some well-investigated subject, either from self-conceit or arrogance, and in the professorial style, have inflicted the greatest injury on philosophy and learning. For they have tended to stifle and interrupt inquiry exactly in proportion as they have prevailed in bringing others to their opinion: and their own activity has not counterbalanced the mischief they have occasioned by corrupting and destroying that of others.

Historic Maps of Dutch Cartographers