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Portia proves herself one of Shakespeare's most cunning heroines
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mounts to its end in the murder of Sigurd at the hands of his blood-brothers
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Einstein's Masterwork: 1915 and the General Theory of Relativity Vendor Code_P002 Portia proves herself one ofIn 1915, Albert Einstein presented his masterwork to the Prussian Academy of Sciences a theory of gravity, matter, space and time: the General Theory of Relativity. Einstein himself said it was 'the most valuable theory of my life', and 'of incomparable beauty'. It describes the evolution of the Universe, black holes, the behaviour of orbiting neutron stars, gravitational lensing, and why clocks run slower on the surface of the Earth than in space. It
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