mesocyclone
mesocyclone A region of rapidly rotating air, up to 10 km in diameter, inside a large
cumulonimbus cloud. Rotation commences near the middle of the cloud and extends downwards. If it continues beneath the cloud base and reaches to the ground it is a
tornado.
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Carnegie Museum of Art plays up mezzotints
Newspaper article from: Tribune-Review/Pittsburgh Tribune-Review; 5/13/2007; ; 700+ words
; ...role of mezzotints in gossip, decoration and collecting. Invented by a German amateur printmaker by the name of Ludwig von Siegen in the 17th century, mezzotints were an offshoot of the intaglio printing process whereby half-tones, which were...
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Exhibit showcases steel mills' heyday
Newspaper article from: Tribune-Review/Pittsburgh Tribune-Review; 3/13/2008; ; 700+ words
; ...deep blacks and rich tonalities capable with the process. Invented by a German amateur printmaker by the name of Ludwig von Siegen in the 17th century, mezzotints were an offshoot of the intaglio printing process whereby half-tones, which normally...
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Touch of the Master In the Early Amateur
Newspaper article from: International Herald Tribune; 9/2/2000; ; 700+ words
; ...with the frenchified Stefano della Bella. Engraving was Prince Rupert's other passion. When a German officer, Ludwig von Siegen, whom Rupert met in Brussels in 1654, demonstrated the principle of mezzotint that he had invented, the prince...
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 "The St. Petersburg Times (Russia)")
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art from russia's two capitals, THE ST. PETERSBURG TIMES
Newspaper article from: The St. Petersburg Times (Russia); 2/21/2003; ; 700+ words
; ...exciting as they are executed in the rare mezzotint technique - an engraving technique invented by amateur German artist Ludwig von Siegen in the 17th century. Another set, this one from the Fine Art Gallery, partly fills the void created by the absence...
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Glimpses of Stuart Britain in Prints
Newspaper article from: International Herald Tribune; 8/22/1998; ; 700+ words
; ...Brussels, he was initiated into the secret of the mezzotint, a technique invented in 1642 by a German soldier, Ludwig von Siegen, who did not exploit it. ''The Little Executioner,'' the portrait of a man dated 1662, inspired by a portrait...
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Akira Kurosawa und seine Zeit
Magazine article from: Film - Dienst; 12/1/2005; ; 700+ words
; ...und seine Zeit Hrsg. von Nicola Glaubitz, Transcript...und Westen. Sein Oeuvre von 30 Spielfilmen bietet...Tagung an der Universitt Siegen im November 2003 ermglichte...wissenschaftlichen Sprachebene. Nicht von ungefhr heit es bereits...Kontextualisierung". K. Ludwig Pfeiffers Aufsatz ...
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Ludwig von Siegen
Book article from: The Columbia Encyclopedia, Sixth Edition
Ludwig von Siegen , c.1609-1680, German engraver, b. Holland, educated in Germany...Through him it was communicated to the English engravers. A collection of Siegen's work is in the British Museum.
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Siegen, Ludwig von
Book article from: The Concise Oxford Dictionary of Art and Artists
Siegen, Ludwig von ( c. 1609– c. 1680). German soldier and amateur artist...the Landgravine Amelia Elizabeth of Bohemia, dated 1642, was sent by Siegen to the Landgrave with a letter stating that the invention was his. Prince...
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mezzotint
Book article from: The Oxford Dictionary of Art
...was invented in the Netherlands in the early 1640s by Ludwig von Siegen . Another notable pioneer, formerly thought to be the...which was an improvement over the roulette used by von Siegen. The Netherlands remained the chief centre for the...
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Rupert, Prince
Book article from: The Concise Oxford Dictionary of Art and Artists
...amateur etcher and introduced mezzotint engraving to England, having perhaps learnt the technique from its inventor Ludwig von Siegen ( Rupert was himself long credited as the inventor). He demonstrated the technique to the diarist John Evelyn...
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roulette
Book article from: The Oxford Dictionary of Art
...manner and other tonal processes that were popular at the time. However, the first known use of a roulette was by Ludwig von Siegen , the inventor of mezzotint ; examination of his prints (the first of which dates from 1642) shows that he roughened...
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