Watchismo Times | category: sundial


Watchismo Times

THE WATCHISMO TIMES WATCH BLOG A reliquary of obscure timepieces from bygone eras as well as the cutting-edge watch designs of today.


"This is the XXI Century Sundial, created by Alessandro using an Arduino microcontroller, a wall, and a laser.
This is a simple project of a sundial wherein the pinion is replaced by a line LASER I took from a LASER level. The LASER is mounted on a RC servo which in turn is driven by a micro controller. The micro controller keeps the time and turns the RC servo accordingly. ... Shorting pins 1-2 adds some life to the sundial and makes it count just the seconds. Hypnotic initially, then pointless.

Originally put together using an Atmel controller, it is "very basic in design it does exactly what I wanted," Alessandro writes."

XXI century sundail -- Now for Arduino also ! [5volt via Make]

via BoingBoing

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16th Century Gun Powder Flask-Sundial Compass Watch

16th Century Gun Powder Flask-Sundial Compass Watch

Portable watches had only been around a few decades when this multi-function timepiece was built in southern Germany circa 1590.

Consisting of a round powder flask made of rosewood with inlaid and engraved rosette-shaped ornaments of brass and bone. A small clock with 1-12 hours twice situated on the outer ring. The small funnel of bone is closed with a springy lid made of brass. Below the center under the engraved lid with a transversally placed hinge, there is a horizontal sundial with indication of the hours from six o'clock in the morning to six o'clock in the evening. A small compass with north-south indication but without correction for the magnetic pole. The string gnomon is stretched by opening the lid and is only valid for one latitude. On the side of the flask, there is an opening to a funnel-shaped small pipe which is placed in the socket and allows for filling up the powder flask. Diameter 10.8cm

From the Beyer Watch and Clock Museum in Zurich-->Link
Museum Collection Photomontage-->Link

Related posts;

Wood & Bone Pocket Watches

Wristwatches of War

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