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  2. Insulated glazing - Wikipedia

    en.wikipedia.org/wiki/Insulated_glazing

    A typical installation of insulated glass windows with uPVC frames. Possibly the earliest use of double glazing was in Siberia, where it was observed by Henry Seebohm in 1877 as an established necessity in the Yeniseysk area where the bitterly cold winter temperatures regularly fall below -50 °C, indicating how the concept may have started: [2]

  3. Libbey-Owens-Ford - Wikipedia

    en.wikipedia.org/wiki/Libbey-Owens-Ford

    The company's headquarters and main factories were located in Toledo, Ohio, with large float glass plants in Rossford, Ohio, Laurinburg, North Carolina, Ottawa, Illinois, Shreveport, Louisiana, and Lathrop, California. The company was formed in 1930 by the merger of Libbey-Owens's sheet-glass operation with the Edward Ford Plate Glass Company ...

  4. National Register of Historic Places listings in California

    en.wikipedia.org/wiki/National_Register_of...

    The following are approximate tallies of current listings in California on the National Register of Historic Places. These counts are based on entries in the National Register Information Database as of April 24, 2008, [1] and new weekly listings posted since then on the National Register of Historic Places web site. [2]

  5. History of the mapping of California - Wikipedia

    en.wikipedia.org/wiki/History_of_the_mapping_of...

    Whitney organized the first comprehensive survey of California, and the first complete topographic maps of the state were completed under him. Mount Whitney, the tallest peak in California is named after him. The State Mining Bureau was established in 1880, and the position of State Geologist was changed to State Mineralogist.

  6. List of National Historic Landmarks in California - Wikipedia

    en.wikipedia.org/wiki/List_of_National_Historic...

    This is a complete List of National Historic Landmarks in California. The United States National Historic Landmark (NHL) program is operated under the auspices of the National Park Service , and recognizes structures, districts, objects, and similar resources nationwide according to a list of criteria of national significance. [ 1 ]

  7. List of California Historical Landmarks - Wikipedia

    en.wikipedia.org/wiki/List_of_California...

    This page was last edited on 13 October 2024, at 19:00 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  8. California Historical Landmark - Wikipedia

    en.wikipedia.org/wiki/California_Historical_Landmark

    The California State Capitol, one of the state's most visited historical landmarks. A California Historical Landmark (CHL) is a building, structure, site, or place in the U.S. state of California that has been determined to have statewide historical landmark significance. [1] [2] [3]

  9. Early glassmaking in the United States - Wikipedia

    en.wikipedia.org/wiki/Early_glassmaking_in_the...

    Glassblower creating a hollow cylinder as the first step for window glass. Glass is made by starting with a batch of ingredients, melting it together, forming the glass product, and gradually cooling it.