These days, you probably aren’t going to consult a sundial. But the ancient time-telling devices are all over DC, and we were curious to learn more about them. Photograph by Evy Mages.. Dedicated in ...

“A sundial for sounding the hours,” from Athanasius Kircher’s Ars magna lucis et umbrae (Rome, 1646) (courtesy Linda Hall Library of Science, Engineering & Technology) On Time: The Quest for Precision ...

The map's meridians of longitude would serve as the sundial's hour lines, creating a union of time and space for that particular location—something no dialist or clockmaker had ever before achieved. A ...

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 ...

Timekeeping has always been one of humankind’s greatest fascinations. From observing the sun’s shadow to engineering atomic precision, the evolution of timekeeping devices spans centuries of ...

Time feels universal — steady, neutral, inevitable. Split | Second at the MIT Museum argues the opposite. On view from 19th February 2026 to 4th January 2027, the exhibition reveals timekeeping not as ...

Today, checking the time is effortless. A quick glance at a wristwatch, a wall clock, or even a mobile phone instantly tells us whether we are late for class, early for an appointment or right on time ...