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Regardless of clearly dismissing recommendations by some that they had been misplaced tank traps, and even plane beacons, a number of readers “discovered it onerous to imagine” that the tetrahedrons (those with 4 sides, and generally known as a triangular pyramid) and octahedrons (sure, eight sides) had been a part of the formwork from the development of the triagrid ceilings on the Nationwide Gallery of Australia within the late Nineteen Seventies early Eighties.
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