Here is a question about this article: The uses of copper in art were not limited to currency: it was used by Renaissance sculptors, in photographic technology known as the daguerreotype, and the Statue of Liberty. Copper plating and copper sheathing for ships' hulls was widespread; the ships of Christopher Columbus were among the earliest to have this feature. The Norddeutsche Affinerie in Hamburg was the first modern electroplating plant starting its production in 1876. The German scientist Gottfried Osann invented powder metallurgy in 1830 while determining the metal's atomic mass; around then it was discovered that the amount and type of alloying element (e.g., tin) to copper would affect bell tones. Flash smelting was developed by Outokumpu in Finland and first applied at Harjavalta in 1949; the energy-efficient process accounts for 50% of the world's primary copper production.
What is the answer to this question: When did The Norddeutsche Affinerie electroplating plant first begin production?
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So... 1830

Here is a question about this article: In physics, Whitehead's thought has had some influence. He articulated a view that might perhaps be regarded as dual to Einstein's general relativity, see Whitehead's theory of gravitation. It has been severely criticized. Yutaka Tanaka, who suggests that the gravitational constant disagrees with experimental findings, proposes that Einstein's work does not actually refute Whitehead's formulation. Whitehead's view has now been rendered obsolete, with the discovery of gravitational waves. They are phenonena observed locally that largely violate the kind of local flatness of space that Whitehead assumes. Consequently, Whitehead's cosmology must be regarded as a local approximation, and his assumption of a uniform spatio-temporal geometry, Minkowskian in particular, as an often-locally-adequate approximation. An exact replacement of Whitehead's cosmology would need to admit a Riemannian geometry. Also, although Whitehead himself gave only secondary consideration to quantum theory, his metaphysics of processes has proved attractive to some physicists in that field. Henry Stapp and David Bohm are among those whose work has been influenced by Whitehead.
What is the answer to this question: What affect did the discovery of gravitational waves have on Whitehead's theory?
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So... Whitehead's view has now been rendered obsolete, with the discovery of gravitational waves

Here is a question about this article: In response to pro-Tibet and pro-human rights protests, the Chinese media focused on the more disruptive protesters, referring for example to "a very small number of 'Tibet independence' secessionists and a handful of so-called human rights-minded NGO activists" intent on "disrupting and sabotaging the Beijing Olympic Games". However, the Chinese media published articles about crowds supporting the torch relay.
What is the answer to this question: What did the Chinese media focus on as far as human rights protesters?
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So...
the more disruptive protesters