As the sun moved across the sky above, the shadow of the gnomon or pin would trace the reverse of its course through the inscriptions on the curve below. The hemispherium was carved out of a block of ...

The sundial works by casting the shadow of the gnomon (a reflection of the celestial north-south meridian) on the two quadrants (a reflection of the equatorial plane) hour by hour, minute by minute.

Immigrations and Customs Enforcement detained 53-year-old Jeanette Vizguerra-Ramirez, an undocumented immigrant from Mexico ...

This is a horizontal compass sundial, made of gilded silver. It is of 'Butterfield' type, named after English manufacturer Michael Butterfield, who popularised the adjustable bird gnomon.

People visiting the Cache Creek Nature Preserve will now be able to tell the time of day without looking at their cell phones. Well, the time may not be exact, but it should be close enough.