Xuanhe Zhao is a professor of mechanical engineering and civil and environmental engineering at Massachusetts Institute of Technology, Cambridge, USA. On a sunny day in April, one of us (C.W.) jogged ...
This is a sound head created by John J. Wild in 1949. It is a brass capsule constructed by Wild to house a piezoelectric quartz crystal, or transducer. The crystal is still within the sound head. Wild ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Inscriptions on this item read in ...
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