In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[Q]: In a Gustave Caillebotte painting named for one of these objects, a dog walks by a man who holds his\n head in his hands. Silvano Vinceti claimed that the numbers two and seven were hidden in one of these\n objects in the background of the Mona Lisa. The title fireworks show of James Whistler's Nocturne in\n Black and Gold takes place over one of these objects. One of these objects named "Maidenhead" is thought\n to have inspired the one J.M.W. Turner painted in Rain, Steam and Speed. A Japanese inspired structure of\n this type at Giverny was often painted alongside water lilies by Claude Monet. For 10 points, name these\n structures which Canaletto often painted crossing the canals of Venice.
[A]: Fine Arts


[Q]: This compound promotes the dephosphorylation and activation of enzyme HMG-CoA to favor cholesterol synthesis and a phenylalanine for leucine substitution at residue B25 results in its "Chicago" variety. Its biosynthesis involves an excision of the C-peptide, and the compound functions by binding to tyrosine kinase receptors on cell surfaces. Sanger's improvement upon the methods of Edman degradation involved its sequencing, and its production occurs primarily in beta cells on the islets of langerhans. For ten points, name this pancreatic counterpart of glucagon used to regulate blood sugar, deficiencies of which are found in sufferers of diabetes.  
[A]: Science


[Q]: In the same year, the scientists behind this experiment corrected the work function for tungsten by taking into account the Schottky effect. A second test conducted by the scientists behind this experiment noted that there was no change in polarization, and the insulation in the apparatus was too weak to use a retarding potential. Fadley modified the apparatus to allow molecular beam epitaxial growth, and part of the interpretation relied on a formula that gives the index of refraction in terms of the bombarding potential. Changing the angle of the detector gave a maximum at 50 degrees, while another component was previously determined to have a plane spacing of 2. 15 angstroms on its {111}-face, leading to a wavelength of 165 nm according to Bragg's Law. Performed at Bell Labs and used to test the de Broglie relation, for 10 points, name this experiment where a beam of electrons was fired at a Nickel target, a proof of wave-particle duality.
[A]:
Science