793 Arizona [SEP] discoverer or inventor
793 Arizona
793 Arizona is a minor planet orbiting the Sun that was discovered in 1907 by American businessman Percival Lowell. It was named for the state of Arizona.
Photometric observations at the Palmer Divide Observatory in Colorado Springs, Colorado during the winter of 2007–2008 were used to build a light curve for this asteroid. The asteroid displayed a period of 7.367 ± 0.005 hours and a brightness change of 0.25 ± 0.02 in magnitude.
External links.
- Lightcurve plot of 793 Arizona, Palmer Divide Observatory, B. D.
Fritz Klatte
Fritz Klatte (28 March 1880, Diepholz – 11 February 1934) was a German chemist and the discoverer of polyvinyl acetate, with German patent (GP 281687 1912) for its preparation from acetylene gas.
Polyvinyl chloride (PVC) was discovered by French physicist Henri Victor Regnault, and German physicist Eugen Baumann. Klatte designed the production process, although never successfully commercialised it. Klatte is sometimes incorrectly attributed to be the discoverer or inventor of PVC.
Notes.
For further biographical information (including photo