Riemann's green is a green pigment ZnO.CoO, which is obtained by heating a mixture of zinc oxide and cobalt nitrate or by the reaction of cobalt nitrate with either or zinc sulphate.
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Yes, if the angle between the two vectors is more than 90o but less than 2700. (cosΘ is negative)
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Where could be the end? Any thoughts?
The end is when node_modules finishes installing.