When an inventor has a unit of measurement named after him, it's clear his work had more than a small impact on scientific and industrial progress. So it was for James Watt, whose Watt engine is often ...

But sometimes, his inventions took on a more playful bent. Not for nothing was the classical Arabic term for mechanics and engineering “Ilm al-Hiyal” (the “science of tricks”); in a 1551 treatise by ...

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IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This model was filed with the ...