Limited to 135 pieces, the watch is open-worked to show off its mechanical architecture ... moon phase at 6 o’clock. Carl F. Bucherer Manero Peripheral Perpetual Calendar Last fall, Carl ...

Luckily, I had a duplicate in the parts pile,” he said. A clock from the late 1860s with a mechanical calendar tells the time and date, even adjusting for a leap year. The oldest timepiece in ...

Fresh research about ripples in the fabric of spacetime suggests a nearly 2,000-year-old cosmic calculator followed the lunar calendar instead ... The box-shaped mechanical computer used gears ...

It also has a date indicator, with denotations running from 4 to 8 O’clock ... Perpetual Calendar retails at $101,448. The post The Bovet Récital 21 Perpetual Calendar blends mechanical ...

Making a regular clock movement slow down so that what normally takes an hour takes a month without making any mechanical changes requires some clever hacks. [Josh] decided to use an Arduino to ...

Researchers may have solved one lingering mystery behind the world’s oldest known mechanical computer using ... accurately predict future astronomical calendar events like planetary movements ...

The artifact turned out to be a surprisingly complex—though fragmented—mechanical ... clock) that pointed to the positions of the Sun and Moon in the zodiac, future eclipses, the Egyptian ...

“His Water-Driven Spherical Bird’s-Eye-View Map of the Heaven” not only served as a calendar ... American Levi Hutchens created a mechanical alarm clock with the specific purpose of waking ...