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John Theophilus Desaguliers, scientist and inventor, 1725

John Theophilus Desaguliers, scientist and inventor, 1725
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Largest available format 2626 × 3504 px 2 MB
Dimension [pixels] Dimension in 300dpi [mm] File size [MB] Online Purchase
Large 2626 × 3504 px 222 × 297 mm 2.1 MB
Medium 768 × 1024 px 65 × 87 mm 761 KB

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IMAGE number
UIS5092597
Image title
John Theophilus Desaguliers, scientist and inventor, 1725
Auto-translated text View Original Source
Location
Science Museum, London, UK
Medium
engraving
Image description

John Theophilus Desaguliers, scientist and inventor, 1725. Engraving by P Pelham after an original painting by H Hysing. Desaguliers (1683-1744), a French-born British inventor and scientist, became experimental assistant to Sir Isaac Newton. He designed a project to heat salt-boilers and similar vessels by steam rather than fire. He added a safety valve to Thomas Savery's steam engine, which along with an internal water jet, condensed the steam in the displacement chambers, improving the design. He appears here holding a magnifying glass, with a glass prism on the table. ©SSPL/Science Museum

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SSPL/UIG / Bridgeman Images
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portrait

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