Answer the question at the end by quoting:

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.
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.

How long did he work with McGrigor?

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.



Answer the question at the end by quoting:

Redd Foxx was born John Elroy Sanford on December 9, 1922, in St. Louis, Missouri and raised on Chicago's South Side. His father, Fred Sanford, an electrician and auto mechanic from Hickman, Kentucky, left his family when Foxx was four years old. He was raised by his half-Seminole Indian mother, Mary Hughes from Ellisville, Mississippi, his grandmother and his minister. Foxx attended DuSable High School in Chicago's Bronzeville neighborhood with future Chicago mayor Harold Washington.
In 1990, in the first-ever episode of In Living Color, in reference to Foxx's financial troubles, Foxx was portrayed by Damon Wayans, who is making a public service announcement to encourage people to pay their taxes. In the film Why Do Fools Fall in Love, Foxx is portrayed by Aries Spears. He is shown performing a stand-up comedy routine. In the animated television series Family Guy parody of Star Wars episode "Blue Harvest", Redd Foxx appears very briefly as an X-wing pilot. When his ship is shot down, he cries "I'm coming Elizabeth!" before dying. In addition to this, he has been parodied on Family Guy by Francis Griffin acting as Foxx's Sanford and Son character.  Foxx was meant to be featured in the MTV show Celebrity Deathmatch, advertised as taking on Jamie Foxx in the episode "When Animals Attack". Instead of Redd Foxx though, Jamie Foxx fought Ray Charles. In the Boondocks episode "Stinkmeaner 3: The Hateocracy" he is portrayed as Lord Rufus Crabmiser, one of Stinkmeaner's old friends coming to kill the Freeman family. Childhood friend and Sanford & Son co-star Lawanda Page is also portrayed in the same episode as Lady Esmeralda Gripenasty.  Redd Foxx appears as a minor character in the 2009 James Ellroy novel Blood's a Rover. He gives a bawdy eulogy at the wake of Scotty Bennett, a murdered rogue LAPD detective including the line "Scotty Bennett was fucking a porcupine. I gots to tell you motherfuckers that it was a female porcupine, so I don't see nothing perverted in it." In the 1999 film Foolish starring comedian Eddie Griffin and rapper Master P, the ghost of Redd Foxx gives Griffin's character advice from behind a stall door in a men's restroom at a comedy club before he goes onstage to perform a show. In 2015, it was said that comedian Tracy Morgan would portray Redd Foxx in a Richard Pryor biopic starring opposite comedian Mike Epps .

Were there any other funny portrayals?
Boondocks episode "Stinkmeaner 3: The Hateocracy"