A 13th-century limestone sundial is one of the earliest timekeeping devices discovered in Egypt Recording the passage of time is a fundamental human activity, whether by turning the pages of a ...

Mid-1st century B.C. Several hundred ancient Roman sundials have been found, but very few are in such good condition—and even fewer are inscribed—making the example from Interamna Lirenas a rare find.

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 brass horary quadrant probably ...

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Considered one of the most impressive mountains in Antarctica, Ulvetanna (9,616 feet; 2,931 meters), aka the Wolf’s Tooth, is a daunting objective from all sides and angles. Thin, broad buttresses, ...

Educator Ruth Mork teaches kids about clocks — from sundials to cuckoo clocks to roosters. Ruth Mork introduces clocks of all kinds — sundials, candle clocks, hourglasses, cuckoos, even a rooster! She ...

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations for ...

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