electromagnetic spectrum
electromagnetic spectrum The complete range of electromagnetic radiation. From longest to shortest wavelengths, the electromagnetic spectrum consists of radio waves (10
5–10
-3 m), infrared waves (10
-3– 10
-6 m), visible light (4-7 × 10
-7 m), ultraviolet waves (10
-7–10
-9 m), X-rays (10
-9–10
-11 m), and gamma rays (10
-11– 10
-14 m). The speed of electromagnetic radiation,
c, is constant in a vacuum (see
Light, Velocity of). Since
c is equal to wavelength multiplied by frequency (expressed in appropriate units), for
c to remain constant the frequency must become greater as the wavelength becomes shorter. For example, radio waves have long wavelength and low frequency, but gamma rays have high frequency and short wavelength. So both wavelength and frequency can take on a wide range of values. The visible region of the electromagnetic spectrum (i.e. light), detectable by the human eye, is subdivided into red (at the long-wavelength end), orange, yellow, green, blue, indigo, and violet (the short-wavelength end).
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Americans in spanish war get belated recognition.(N)
Newspaper article from: The Virginian Pilot; 4/27/2008; 700+ words
; ...hatched amid civil war, Americans are also looking...women who broke American isolationism to volunteer in the Spanish war look out from...front in 1937. The Spanish Civil War, which...Pablo Picasso, but Americans who risked their...
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Sydney Harris, 72, photographer, vet of Spanish war
Newspaper article from: Chicago Sun-Times; 7/10/1989; 511 words
; ...who was a veteran of the Spanish Civil War, died Saturday at his Edgewater...Brigade, a group of 3,000 American volunteers who fought with the Spanish government against the fascist rebellion in the Spanish Civil War in the 1930s...
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Lester Ziffren, reporter who broke news of Spanish War, dead at 101
Newspaper article from: Tribune-Review/Pittsburgh Tribune-Review; 11/20/2007; 700+ words
; ...who broke news of the Spanish Civil War as a young U.S. reporter...agency's lore for his Spanish Civil War scoop revealing...fight from Melilla, a Spanish enclave in North Africa...after nearly 75 other Americans had been evacuated to...Toler as the Chinese American detective ...
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Spanish war fighter to be honored here
Newspaper article from: Chicago Sun-Times; 11/20/1987; ; 557 words
; ...was the first black American in U.S. history to...is one of many black Americans whose contributions...Lincoln Brigade, the American contingent of volunteers...rebellion during the Spanish Civil War in the 1930s. More...American volunteers in the Spanish fighting - viewed by...
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Bunni Sovetski, 75, sculptor and Spanish war vet
Newspaper article from: Chicago Sun-Times; 1/12/1986; ; 546 words
; ...sculptor who fought in the Spanish Civil War, will be from 7 to 10 p.m...Abraham Lincoln Brigade, the American unit that fought on the Republican side in the Spanish Civil War, and saw 13 months of action...
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Bush to meet Brit, Spanish war allies.(News)
Newspaper article from: The Boston Herald; 3/15/2003; ; 700+ words
; ...salvage U.N. support for war against Iraq, President...Minister Tony Blair and Spanish Prime Minister Jose Maria...U.N. backing of a war with Iraq. Chilean President...urged Iraqis to target American interests around the...others, to threaten American interests wherever they...
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Spanish civil war. (Frontline).
Magazine article from: History Today; 11/1/2001; ; 700+ words
; ...after the Second World War in Poland, Hungary and...been eagerly taken up by American rightists keen to remove...after the Second World War, Korea and Vietnam, and the wars of the Middle East and...understandable. Books on the war and its aftermath regularly...too, interest in the ...
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 "The Capital Times (Madison, WI)")
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SPANISH CIVIL WAR VETERANS HAVE MUCH TO TEACH US.(EDITORIAL)(AMY GOODMAN)(Column)
Newspaper article from: The Capital Times (Madison, WI); 5/3/2007; 700+ words
; ...learn of the Spanish Civil War by reading George Orwell...official history, World War II began for the U.S...veterans of the Spanish Civil War are living messengers...000 volunteers were 80 American women. Most of them served...American Women in the Spanish Civil ...
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 "Seattle Post-Intelligencer (Seattle, WA)")
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SPANISH CIVIL WAR VETS LOOK AHEAD.(Editorial)
Newspaper article from: Seattle Post-Intelligencer (Seattle, WA); 5/3/2007; 700+ words
; ...learn of the Spanish Civil War by reading George Orwell...official history, World War II began for the U.S...veterans of the Spanish Civil War are living messengers...documentary "Into the Fire: American Women in the Spanish Civil War" features the...
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Spanish, Greek wars, Asia, U.S. lend-lease.(BOOKS)(NEW WORLD ORDER)
Newspaper article from: The Washington Times; 8/22/2004; 700+ words
; ...word written about the Spanish Civil War, but Stanley G. Payne...encyclopedic volume The Spanish Civil War, The Soviet...prevent a victory by Spanish democratic socialists...the Origins of Soviet-American Rivalry (Basic Books...
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Religious Response to the Spanish Civil War
Book article from: American Decades
...so many that the American press is displaying...dominant section of the American press terms *a...representative Americans." Source: "American Committee for Spanish Relief," Commonweal...regarding the civil war led to increased...
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Spanish-American War
Book article from: The Columbia Encyclopedia, Sixth Edition
Spanish-American War 1898, brief conflict...States arising out of Spanish policies in Cuba. It...for independence from Spanish rule made U.S. intervention...activity had failed, the Spanish military commander...the heavy losses of American investment in Cuba caused...Although the ...
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Spanish-American War, Navy in
Dictionary entry from: Dictionary of American History
...further successful American operations against...lessons learned in the war, from which the Americans profited. Their gunnery...became evident. The Spanish-American War also added strong...S. Navy, and the Spanish-American War. New...
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American Correspondents Cover the Spanish-American War
Book article from: American Eras
American Correspondents Cover the Spanish-American War Myth and Legend...about reporters in the Spanish-American war of...During the Spanish-American War the rivalry between...serving under the Spanish officer Colonel Ordonez...
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A Soldier's Account of the Spanish-American War (1898)
Dictionary entry from: Dictionary of American History
A SOLDIER'S ACCOUNT OF THE SPANISH-AMERICAN WAR (1898) The Spanish-American War evoked much enthusiasm and patriotism...if it were to wrest control of Cuba from the Spanish. Nonetheless, a poorly trained and inadequately...
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