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There are many unsolved problems in mathematics. Some prominent outstanding unsolved problems (as well as some which are not necessarily so well known) include 1. The Goldbach conjecture . 2.
Arturo's Desert Eagle Ascends Pima Air & Space Museum Arturo Valdenegro, 12-year-old Tucson resident, made paper aviators everywhere look minuscule by comparison last week. In the skies over the Sonora desert in Arizona, the Pima Air & Space Museum launched the biggest paper airplane ever constructed --a paper airplane based on Valdenegro’s design--into the sky, accelerating it to speeds topping 100 miles per hour before it came crashing down (as paper airplanes do).
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