Context472752
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| qkg:contextText | Ch.4 "Life and Works" Footnote: At least one of these telescopes had the principal mirror made of glass instead of metal. Philosophical Transactions of the Royal Society of London (1803). (en) |
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Triples where Context472752 is the object (without rdf:type)
| qkg:Mention959140 | qkg:hasContext |
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