Of all the features you may have noticed on your iPhone, one that stands out is the Barometer. What does this tool do, and how do you use it?

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The inscriptions on the face of this ...

Jakob Goldschmid, a mechanic in Zurich, Switzerland, designed an aneroid barometer that promised great stability, but that had to be adjusted before each reading.