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Robert Wilhelm Eberhard Bunsen (German:; 30 March 1811 [a] – 16 August 1899) was a German chemist.He investigated emission spectra of heated elements, and discovered caesium (in 1860) and rubidium (in 1861) with the physicist Gustav Kirchhoff. [11]
[3] [7] Francium is the second rarest element (after astatine) — only about 550g exists in the entire Earth's crust at any given time — and it was the last element to be discovered in nature. [ 5 ] [ 6 ] (Five elements that were discovered synthetically were later found to exist in nature: technetium , promethium , astatine , neptunium ...
Caesium (IUPAC spelling; [9] also spelled cesium in American English) is a chemical element; it has symbol Cs and atomic number 55. It is a soft, silvery-golden alkali metal with a melting point of 28.5 °C (83.3 °F; 301.6 K), which makes it one of only five elemental metals that are liquid at or near room temperature.
When We Left Earth: The NASA Missions (2008) Why Didn't I Think of That? Why We Hate (2019) Wild Brazil (2014) Wild Discovery (1995–2002) Wild New World (2002) Wild Pacific; Wild Weather (2002; miniseries) Wildlife Chronicles; Wings; Wolves at Our Door (1997) A World Away; World Birth Day (2002–03) World Class Cuisine; World of Wonder
Curiosity is an American documentary television series that premiered on August 7, 2011, on the Discovery Channel. [1] [2] Each episode focuses on one question in science, technology, and society (e.g., why the RMS Titanic sank) and, for the first season, features a different celebrity host.
Celebrate Earth Day 2024 with these inspirational, happy, and funny Earth Day quotes and short messages about saving the environment and planet.
Science's first foray into dramatic programming, its premiere on the channel will be simulcast on sister network Discovery Channel. [2] The Critical Eye – An eight-part series examining pseudoscientific and paranormal phenomena. Dinosaur Revolution – A four-part miniseries on the natural history of dinosaurs. The last two episodes were ...
Daily Planet first aired on January 1, 1995, the same day as the premiere of Discovery Channel Canada, under the name @discovery.ca, it was an hour-long daily news magazine with a science news segment and several feature segments. During this era, the show aired for the fall/winter season.