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Stardew Valley was originally titled Sprout Valley and was created by American indie game designer Eric Barone, known professionally as ConcernedApe. [ 6 ] [ 7 ] [ 8 ] Barone graduated from the University of Washington Tacoma in 2011 with a computer science degree but was unable to get a job in the industry, instead working as an usher at the ...
The first generation of the Iridium constellation launched a total of 95 telecommunication satellites in low Earth orbit which were known to cause Iridium flares, the brightest flares of all orbiting satellites, starting in 1997. From 2017 to 2019 they were replaced with a new generation that does not produce flares, with the first generation ...
An underground fire started by an acetylene tank caused the death of 177 miners on 16 September 1986. [3] Another 235 miners were injured in the incident, one of the largest mining incidents in South Africa. [4]
Iridium 7 was a U.S. Iridium communications satellite. It was launched into low Earth orbit from Vandenberg Air Force Base at 14:55 GMT on 5 May 1997, by a Delta II 7920-10C carrier rocket. [ 1 ] It was operated in Plane 4 of the Iridium satellite constellation , with an ascending node of 262.4°.
The type locality of this iridium anomaly is near Raton, New Mexico. [1] [2]Iridium is a very rare element in the Earth's crust, but is found in anomalously high concentrations (around 100 times greater than normal) in a thin worldwide layer of clay marking the boundary between the Cretaceous and Paleogene periods, 66 million years ago.
One example is IrH 5 (P i Pr 3) 2 (i Pr = isopropyl). [34] The ternary hydride Mg 6 Ir 2 H 11 is believed to contain both the IrH 4− 5 and the 18-electron IrH 5− 4 anion. [35] Iridium also forms oxyanions with oxidation states +4 and +5. K 2 IrO 3 and KIrO 3 can be prepared from the reaction of potassium oxide or potassium superoxide with ...
Iridium(II) chloride is an inorganic chemical compound of iridium metal and chlorine with the chemical formula IrCl 2. [ 1 ] [ 2 ] This is a metal salt of iridium and hydrochloric acid . Synthesis
Iridium(III) chloride is the inorganic compound with the formula IrCl 3. The anhydrous compound is relatively rare, but the related hydrate is much more commonly encountered. The anhydrous salt has two polymorphs , α and β, which are brown and red colored respectively.