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Nature 451, 1057 (28 February 2008) | doi:10.1038/4511057a; Published online 27 February 2008

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Hidden treasures: Eise Eisinga Planetarium

Alison Abbot1

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The world's oldest functioning planetarium was built by an eighteenth-century wool-comber in the Netherlands. Alison Abbot reports, in the second of her monthly series on small museums

Early in 1774, a Dutch preacher and amateur astronomer, Eelco Alta, scared his compatriots out of their wits by predicting that the world would end on 8 May. His scientific arguments seemed plausible and terrifying.