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United States electoral college map showing number of electoral votes by state.
How Does the Electoral College Work?
The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)
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Globe South America, map
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David Cameron. President Barack Obama and Prime Minister David Cameron of the United Kingdom talk during the G8 Summit at the Lough Erne Resort in Enniskillen, Northern Ireland, June 17, 2013
What’s the Difference Between a President and a Prime Minister?
United States elections portal page linking to each election interactive
A History of U.S. Presidential Elections in Maps
Click on image for enlargements of panel sections. The Ghent Altarpiece (open view) by Jan and Hubert van Eyck, 1432, polyptych with 12 panels, oil on panel; in the Cathedral of Saint-Bavon, Ghent, Belg.
The Most Stolen Work of Art
Washington DC.,USA, April 26, 1989. Supporters for and against legal abortion face off during a protest outside the United States Supreme Court Building during Webster V Health Services
Pro and Con: Abortion

full-width-at-half-maximum

Also known as: FWHM

Learn about this topic in these articles:

energy resolutions

  • detector output connected to a measuring circuit
    In radiation measurement: Spectroscopy systems

    …as the ratio of the full-width-at-half-maximum (FWHM) of the peak divided by the centroid position of the peak. This ratio is normally expressed as a percentage, and small values correspond to narrow peaks and good energy resolution. If the incident radiation consists of multiple discreet energies, good energy resolution will…

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