Search results
Results from the WOW.Com Content Network
Pietro Paulo Caproni (1862–1928) was founder and co-owner of PP Caproni & Brother, Boston, Massachusetts, manufacturers of plaster reproductions of classical and contemporary statues. These 'cast' reproductions were, in an era before commercial photography, an integral educational tool in teaching people the history of art and antiquities.
Plaster expands while hardening then contracts slightly just before hardening completely. This makes plaster excellent for use in molds, and it is often used as an artistic material for casting. Plaster is also commonly spread over an armature (form), made of wire mesh, cloth, or other materials; a process for adding raised details.
In anticipation of the September 1937 sesquicentennial of the U.S. Constitution, 2,600 painted plaster models of Independence Hall were mass-produced and shipped to schools and public buildings across the country. [15] Independence Hall scale model [16] (1937, painted plaster, WPA), Lobby, U.S. Supreme Court Building, Washington, D.C. [17]
Also on the ceiling, a plaster medallion in the form of a sunburst features 13 stars to represent the original colonies. The design mirrors a similar pattern on the floor, where a carpet made by William Sprague, a local weaver, features the shields of each of the 13 original states. The carpet seen today is a reproduction of the original. [2] [7]
Plaster for hair slabs made with manila hemp fiber broke at 195 lb (88 kg), plaster mixed with sisal hemp at 150 lb (68 kg), jute at 145 lb (66 kg), and goats' hair at 144 lb (65 kg). [citation needed] Another test was made in the following manner. Two barrels of mortar were made up of equal proportions of lime and sand, one containing the ...
Maps of the New World had been produced since the 16th century. The history of cartography of the United States begins in the 18th century, after the declared independence of the original Thirteen Colonies on July 4, 1776, during the American Revolutionary War (1776–1783). Later, Samuel Augustus Mitchell published a map of the United States ...
A 1763 map of the Thirteen Colonies and the Indian Reserve, a settlement prohibited by the British Crown that sparked resentment among Americans Benjamin Franklin, a Founding Father of the United States and Pennsylvania delegate to the Second Continental Congress, which created the Continental Army in 1775 and unanimously adopted and issued the ...
Pennsylvania population density map. As of the 2020 U.S. census, Pennsylvania had a population of 13,011,844, up from 12,702,379 in 2010. Pennsylvania is the fifth-most populated state in the U.S. after California, Texas, Florida, and New York. [94]