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Pyrex (trademarked as PYREX and pyrex) is a brand introduced by Corning Inc. in 1915, initially for a line of clear, low-thermal-expansion borosilicate glass used for laboratory glassware and kitchenware. It was later expanded in the 1930s to include kitchenware products made of soda–lime glass and other materials. [1]
The lids of CorningWare are typically made of Pyrex. Though some early lids were made of Pyroceram, most subsequent covers have been made of borosilicate or tempered soda-lime glass. Unlike the cookware, these lids have a lower tolerance for thermal shock and cannot be used under direct heat.
In 1915, Corning created an improved heat resistant glass formula and launched Pyrex, the first-ever consumer cooking products made with temperature-resistant glass, in 1915. [ 13 ] The California Institute of Technology 's 200-inch (5.1 m) telescope mirror at Palomar Observatory was cast by Corning during 1934–1936, out of low expansion ...
Grab-it is a brand of Corning Ware cookware products easily identifiable by their uniform distinctive shape: a bowl with vertical sides and a rounded, concave tab handle. . The name was first used for a versatile product which could safely go from refrigerator to stovetop, oven, broiler, or microwave, but later, inferior products, nearly identical in appearance but unsafe for stovetop or ...
TODAY reports that opaque, brightly colored pieces that feature floral and geometric designs tend to resell for the highest price. Pyrex products made between 1915 and the late 1970s are ...
British Raj period: the first definite map of India drawn by English cartographers. Mid-19th century: First noted journal club by English surgeon Sir James Paget (1814–1899); recalling in his memoirs time spent at St. Bartholomew's Hospital in London, Paget describes "a kind of club [. . .] a small room over a baker's shop near the Hospital ...
Each group of squares in the map key is 20% of total number of districts. With over 56 million inhabitants, England is by far the most populous country of the United Kingdom, accounting for 84% of the combined total. [4] England taken as a unit and measured against international states would be the 26th largest country by population in the ...
1519 : Portuguese cartographers Lopo Homem, Pedro Reinel and Jorge Reinel made the group of maps known today as the Miller Atlas or Lopo Homem – Reinéis Atlas. 1530: Alonzo de Santa Cruz, Spanish cartographer, produced the first map of magnetic variations from true north. He believed it would be of use in finding the correct longitude.