Timeline of United States inventions (1890–1945) of these fibers for textile applications is more recent. The first commercial production of fiberglass was in 1936. In 1938, fiberglass was invented by Russell Games Slayter of Owens-Corning. 1938 Xerography Xerography, which means "dry writing" in Greek, is a process of making copies. Xerography makes copies without using ink. In this process, static electricity charges a lighted plate; a plastic powder is applied to the areas of the page to remain white. The photocopier was invented in 1938 by Chester Floyd Carlson who marketed his revolutionary device to about 20 companies before he could interest any. The Haloid Company,
World Enough and Time (Doctor Who) a share of 22%. The episode received 5.00 million views overall, and it received an Appreciation Index of 85, the joint highest score of Twelfth Doctor episodes along with "Dark Water" from the eighth series. "World Enough and Time" received overwhelmingly positive reviews from television critics, with many of them hailing it the best episode of the tenth series, but also criticizing the network for spoiling the cliffhanger early on. The episode currently holds an approval rating of 100% on Rotten Tomatoes, the site consensus reading, "World Enough and Time" sets up the conclusion of "Doctor Who"'s tenth season with