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Hace 13 horas · Christmas tree decorated with lights, stars, and glass balls Glade jul by Viggo Johansen (1891) Typical North American family decorating Christmas tree (c. 1970s). A Christmas tree is a decorated tree, usually an evergreen conifer, such as a spruce, pine or fir, or an artificial tree of similar appearance, associated with the celebration of Christmas.
Hace 13 horas · The Vought F4U Corsair is an American fighter aircraft that saw service primarily in World War II and the Korean War.Designed and initially manufactured by Chance Vought, the Corsair was soon in great demand; additional production contracts were given to Goodyear, whose Corsairs were designated FG, and Brewster, designated F3A.. The Corsair was designed and operated as a carrier-based aircraft ...
Hace 13 horas · Solar-Light-Enhanced Cobalt Pyroborate Nanoparticles: Dual Role as Metal Redox and Photocatalyst for Sulfate Radical Advanced Oxidation Process
