background preloader

Atlas of the Historical Geography of the United States

Atlas of the Historical Geography of the United States
A spectacular historical atlas refashioned for the 21st century Here you will find one of the greatest historical atlases: Charles O. Paullin and John K. Wright's Atlas of the Historical Geography of the United States, first published in 1932. This digital edition reproduces all of the atlas's nearly 700 maps. Many of these beautiful maps are enhanced here in ways impossible in print, animated to show change over time or made clickable to view the underlying data—remarkable maps produced eight decades ago with the functionality of the twenty-first century. hide introductory video next Old Atlas, New Functionality Georectified Maps Most maps in the atlas have been georectified, warped so that they can be placed consistently on top of a digital map. Navigating the Atlas For most maps in the atlas click on georectified ⇆ plate to toggle back and forth between views of the georectified maps and how they look in the printed atlas. There are lots of maps in the Atlas.

Iran, US, Europe start implementing nuclear deal TEHRAN, Iran (AP) — Iran unplugged banks of centrifuges involved in its most sensitive uranium enrichment work on Monday, prompting the United States and European Union to partially lift economic sanctions as a landmark deal aimed at easing concerns over Iran's nuclear program went into effect. The mutual actions — curbing atomic work in exchange for some sanctions relief — start a six-month clock for Tehran and the world powers to negotiate a final accord that the Obama administration and its European allies say will be intended to ensure Iran cannot build a nuclear weapon. In the meantime, the interim deal puts limits on Iran's program — though it continues low levels of uranium enrichment. Tehran denies its nuclear program is intended to produce a bomb. The payoff to Iran is an injection of billions of dollars into its crippled economy over the next six months from the suspension of some sanctions — though other sanctions remain in place. View gallery Dahlburg reported from Brussels.

History in Motion Statistical Test Calculators Statistics Calculators Here you'll find a set of statistics calculators that are intuitive and easy to use. Included are a variety of tests of significance, plus correlation, effect size and confidence interval calculators. If you're not sure what statistics calculator you require, check out our Which Statistics Test? wizard. Significance Tests Prediction Tests of Correlation P Values Bayes Theorem Quick Bayes Theorem Calculator Effect Size Effect Size Calculators Confidence Intervals Biostatistics Utilities Not sure which statistics test you should use? Which Statistics Test? Do Not Sell My Data | Privacy | Legal Disclaimer | Cite | Contact | About | ©2023

Google Earth Timelapses and Historical Imagery Google Earth Pro (the desktop version of Google Earth) has offered historical imagery for many years. You can access that imagery by selecting the timeslider icon in the menu at the top of Google Earth when it is open on your desktop. Today, Google unveiled some updates to their Google Earth Engine Timelapse website that offers historical imagery in an online version of Google Earth. The timelapses are animations that play 35 years of satellite imagery. Applications for Education The timelapse and historical imagery could be useful in a science class to help students see how coastlines and other features of landscapes change over time.

Lingua Franca Magazine Mirror: The Lingua Franca Archive topoView | USGS Accessing USGS topographic maps has never been easier TopoView highlights one of the USGS's most important and useful products, the topographic map. In 1879, the USGS began to map the Nation's topography. This mapping was done at different levels of detail, to support various land use and other purposes. As the years passed, the USGS produced new map versions of each area. This interface was created by the National Geologic Map Database project (NGMDB), in support of topographic mapping program managed by the National Geospatial Program (NGP). Packed with new features and downloadable file formats The maps shown through topoView are from the USGS’s US Topo series and earlier Historical Topographic Map Collection (HTMC). The goal of the HTMC, which started in 2011, is to provide a digital repository of USGS 1:250,000 scale and larger (more detailed) maps printed between 1884 (the inception of the topographic mapping program), and 2006. Send us your feedback

Related: