the amount of light reflected from the front surface of common window glass is about 10, 000 lux.
the amount of light reflected from the front surface of common window glass is about 10, 000 lux.
the amount of light reflected from the front surface of common window glass is about?
10, 000 lux
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during the beginning of the 20th century, competitors of the american window glass trust used a different approach to gain a technological advantage. the machines used by american window glass replaced glass blowers, but still used the same blowing and cutting process used in the 1880s—although the company was constantly working to make the process more efficient. competitors such as american inventor irving w. colburn began working on a machine that produced window glass using a different process. colburn patented his work during the first decade of the 20th century. although he filed for bankruptcy in 1912, his patents were purchased by edward drummond libbey and michael j. owens—who hired colburn to continue work on the machine. owens was the creator of the owens bottling machine that revolutionized the glass bottle industry. working with colburn, owens improved the window glass machine enough that it began being used for production in 1921. by 1926, libbey-owens had gained a window glass market share of 29 percent, while american window glass's share was 59 percent. during the 1920s, pittsburgh plate glass also developed a new process for making window glass, creating even more competition in the window glass industry.
hartford city glass company