Background: Kenneth Anger (born Kenneth Wilbur Anglemyer; February 3, 1927) is an American underground experimental filmmaker, actor and author. Working exclusively in short films, he has produced almost forty works since 1937, nine of which have been grouped together as the "Magick Lantern Cycle". His films variously merge surrealism with homoeroticism and the occult, and have been described as containing "elements of erotica, documentary, psychodrama, and spectacle". Anger himself has been described as "one of America's first openly gay filmmakers, and certainly the first whose work addressed homosexuality in an undisguised, self-implicating manner", and his "role in rendering gay culture visible within American cinema, commercial or otherwise, is impossible to overestimate", with several being released prior to the legalization of homosexuality in the United States.
Context: In 1953, soon after the production of Eaux d'Artifice, Anger's mother died and he temporarily returned to the United States in order to assist with the distribution of her estate. It was during this return that he began to once more immerse himself in the artistic scene of California, befriending the film maker Stan Brakhage, who had been inspired by Fireworks, and the two collaborated on producing a film, but it was confiscated at the film lab for obscenity and presumably destroyed. Around this time, two of Anger's friends, the couple Renate Druks and Paul Mathiesin held a party based upon the theme of "Come As Your Madness"; Anger himself attended dressed in drag as the ancient Greek goddess Hekate. The party and its many costumes inspired Anger, who produced a painting of it, and asked several of those who attended to appear in a new film that he was creating - Inauguration of the Pleasure Dome. Inauguration, which was created in 1954, was a 38-minute surrealist work featuring many Crowleyan and Thelemite themes, with many of the various characters personifying various pagan gods such as Isis, Osiris and Pan. One of the actresses in the film was Marjorie Cameron, the widow of Jack Parsons, the influential American Thelemite who had died a few years previously, while Anger himself played Hecate. He would subsequently exhibit the film at various European film festivals, winning the Prix du Cine-Club Belge and the Prix de l'Age d'Or, as well as screening it in the form of a projected triptych at Expo 58, the World Fair held in Brussels in 1958.  In 1955, Anger and his friend Alfred Kinsey traveled to the derelict Abbey of Thelema in Cefalu, Sicily, to film a short documentary titled Thelema Abbey. The abbey itself had been used by Aleister Crowley for his commune during the 1920s, and Anger restored many of the erotic wall-paintings that were found there, as well as performing certain Crowleyan rituals at the site. The documentary was made for the British television series Omnibus, but was later lost. The following year Kinsey died and Anger decided to return to Paris, where he was described at the time as being "extremely remote and lonely".  In desperate need of money, Anger wrote a book titled Hollywood Babylon in which he collected together gossip regarding celebrities, some of which he claims he had been told. This included claiming (with no corroboration or citing of sources) that Rudolph Valentino liked to play a sexually submissive role to dominant women, that Walt Disney was a drug user, addicted to opiates (reflected in the character of Goofy, who's perpetually stoned on cannabis), as well as describing the nature of the deaths of Peg Entwistle and Lupe Velez. The work was not published in the United States initially, and it was first released by the French publisher Jean-Jacques Pauvert. A pirated (and incomplete) version was first published in the U.S. in 1965, with the official American version not being published until 1974. Now with some financial backing from the publication of Hollywood Babylon, his next film project was The Story of O; essentially a piece of erotica featuring a heterosexual couple engaged in sadomasochistic sexual activities, although it refrained from showing any explicit sexual images.
Question: did he do anything in the US?
Answer: artistic scene of California, befriending the film maker Stan Brakhage, who had been inspired by Fireworks, and the two collaborated on producing a film,

Problem: Background: James Watt  (30 January 1736 (19 January 1736 OS) - 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1781, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world. While working as an instrument maker at the University of Glasgow, Watt became interested in the technology of steam engines. He realised that contemporary engine designs wasted a great deal of energy by repeatedly cooling and reheating the cylinder. Watt introduced a design enhancement, the separate condenser, which avoided this waste of energy and radically improved the power, efficiency, and cost-effectiveness of steam engines.
Context: From an early age Watt was very interested in chemistry. In late 1786, while in Paris, he witnessed an experiment by Berthollet in which he reacted hydrochloric acid with manganese dioxide to produce chlorine. He had already found that an aqueous solution of chlorine could bleach textiles, and had published his findings, which aroused great interest among many potential rivals. When Watt returned to Britain, he began experiments along these lines with hopes of finding a commercially viable process. He discovered that a mixture of salt, manganese dioxide and sulphuric acid could produce chlorine, which Watt believed might be a cheaper method. He passed the chlorine into a weak solution of alkali, and obtained a turbid solution that appeared to have good bleaching properties. He soon communicated these results to James McGrigor, his father-in-law, who was a bleacher in Glasgow. Otherwise he tried to keep his method a secret.  With McGrigor and his wife Annie, he started to scale up the process, and in March 1788, McGrigor was able to bleach 1500 yards of cloth to his satisfaction. About this time Berthollet discovered the salt and sulphuric acid process, and published it so it became public knowledge. Many others began to experiment with improving the process, which still had many shortcomings, not the least of which was the problem of transporting the liquid product. Watt's rivals soon overtook him in developing the process, and he dropped out of the race. It was not until 1799, when Charles Tennant patented a process for producing solid bleaching powder (calcium hypochlorite) that it became a commercial success.  By 1794 Watt had been chosen by Thomas Beddoes to manufacture apparatus to produce, clean and store gases for use in the new Pneumatic Institution at Hotwells in Bristol. Watt continued to experiment with various gases for several years, but by 1797 the medical uses for the "factitious airs" had come to a dead end.
Question: How long did he work with McGrigor?
Answer:
Watt continued to experiment with various gases for several years, but by 1797 the medical uses for the "factitious airs" had come to a dead end.