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In 1906, precipitation hardening alloys were discovered by Alfred Wilm. Precipitation hardening alloys, such as certain alloys of aluminium, titanium, and copper, are heat-treatable alloys that soften when quenched (cooled quickly), and then harden over time. After quenching a ternary alloy of aluminium, copper, and magnesium, Wilm discovered that the alloy increased in hardness when left to age at room temperature. Although an explanation for the phenomenon was not provided until 1919, duralumin was one of the first "age hardening" alloys to be used, and was soon followed by many others. Because they often exhibit a combination of high strength and low weight, these alloys became widely used in many forms of industry, including the construction of modern aircraft.

When were precipitation hardening alloys discovered?
Answer: 1906
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The post-Mughal era was dominated by the rise of the Maratha suzerainty as other small regional states (mostly late Mughal tributary states) emerged, and also by the increasing activities of European powers. There is no doubt that the single most important power to emerge in the long twilight of the Mughal dynasty was the Maratha confederacy. The Maratha kingdom was founded and consolidated by Chatrapati Shivaji, a Maratha aristocrat of the Bhonsle clan who was determined to establish Hindavi Swarajya. Sir J.N. Sarkar described Shivaji as "the last great constructive genius and nation builder that the Hindu race has produced". However, the credit for making the Marathas formidable power nationally goes to Peshwa Bajirao I. Historian K.K. Datta wrote about Bajirao I:

What did J.N. Sarkar say of Shivaji's nation building?
Answer: great constructive genius
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Kevin Saunderson's company KMS Records contributed many releases that were as much house music as they were techno. These tracks were well received in Chicago and played on Chicago radio and in clubs.[citation needed] Blake Baxter's 1986 recording, "When we Used to Play / Work your Body", 1987's "Bounce Your Body to the Box" and "Force Field", "The Sound / How to Play our Music" and "the Groove that Won't Stop" and a remix of "Grooving Without a Doubt". In 1988, as house music became more popular among general audiences, Kevin Saunderson's group Inner City with Paris Gray released the 1988 hits "Big Fun" and "Good Life", which eventually were picked up by Virgin Records. Each EP / 12 inch single sported remixes by Mike "Hitman" Wilson and Steve "Silk" Hurley of Chicago and Derrick "Mayday" May and Juan Atkins of Detroit. In 1989, KMS had another hit release of "Rock to the Beat" which was a theme in Chicago dance clubs.[citation needed]

what group released "Big Fun" and "Good Life" in 1988?
Answer:
Inner City