UNT College of Arts and Sciences - 2,145 Matching Results

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Rediscovery of the Elements: Strontium

Description: Article describing the history of the element strontium from its discovery in Strontian, Scotland, to its early uses in English medicine. Maps with directions and photographs of pertinent locations are included.
Date: Autumn 2002
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
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Rediscovery of the Elements: The Rare Earths - The Beginnings

Description: This article explores the rare earths, the chemically similar elements that occupy the f-block of the Periodic Table and the Group III chemical family. The articles shows the locations that certain rare earths were originally found. It also gives details on where the elements can be found currently, as well as major production areas. The cover of the Fall 2015 Hexagon journal (Vol. 106, Issue 3) features the Mountain Pass rare earth ore body in Southern California, which is mentioned in the ar… more
Date: Autumn 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
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Rediscovery of the Elements: The Rare Earths - The Confusing Years

Description: This article gives a timeline of research conducted on the rare earths, 17 elements found in the f-block and Group III chemical family of the Periodic Table. It covers discoveries made after the success of Swedish chemist, Carl Gustaf Mosander. The article describes the categorization of the rare earths that took place after Mosander's time, as well as separation techniques that developed.
Date: Winter 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
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Ring of Fire

Description: Front cover of the fall 2012 issue of The Hexagon, which features an image of the "ring of fire" that occurred during the annular eclipse on May 20, 2012. The photograph was taken in Brownfield, Texas a few minutes before sunset. The inside cover contains a table of contents, a staff list, an editorial, and details about the cover photograph.
Date: Autumn 2012
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
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Saguaro Cactus and Joshua Trees

Description: Front cover of the spring 2013 issue of The Hexagon, which features an image of a saguaro cactus and joshua trees at a location in northwest Arizona along highway US 93. The inside cover contains a table of contents, a staff list, an editorial, and details about the cover photograph.
Date: Spring 2013
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
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St. Anne's Church in Vilnius, Lithuania

Description: Front cover of the 2011 issue of The Hexagon, featuring St. Anne's church in Vilnius, Lithuania. The Gothic red brick building looms above a street bustling with activity. The inside cover contains a table of contents, staff credits, an editorial, and a description of the front cover.
Date: Summer 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
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The Statue of Copernicus

Description: Front cover of the Summer 2009 issue of The Hexagon, featuring a statue of Copernicus sitting on a block, wearing a flowing robe, and holding a compass up to a heliocentric model. The next page contains a table of contents, a staff list, and an editorial regarding the twentieth anniversary of the events at Tiananmen Square.
Date: Summer 2009
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
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Statue of James Prescott Joule

Description: Front cover of the spring 2011 issue of the Hexagon, which features a statue James Joule wearing a coat and sitting in a chair. The inside cover includes a table of contents, a list of staff, an editorial, and a description of the cover.
Date: Spring 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
open access

Statue of Leonardo da Vinci

Description: Front page of the Fall 2010 issue of The Hexagon, which features a stone statue of Leonardo da Vinci next to three photographs from articles. The inside cover has a table of contents, a list of staff, an editorial, and a description of the cover.
Date: Autumn 2010
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Refine your search to only Article
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