MetaFilter posts tagged with timekeeping

New York's Official Clock Master

jonson — Sun, 10 Jun 2007 23:03:24 -0800

Marvin Schneider, New York City's Official Clock Master is responsible for keeping the giant public clocks of the five boroughs running smoothly; the beautiful photo essay with an accompanying interview is not to be missed for fans of giant gears & sprockets.

The National Maritime Museum, Greenwich

carter — Wed, 15 Mar 2006 10:25:55 -0800

The National Maritime Museum, Greenwich has some excellent online collections related to maritime history and technology, including telescopes, marine chronometers, sundials, and a whole lot more. Some stuff I've been looking at: John Harrison's chronometers (described in Dava Sobel's book Longitude), polyhedral sundials, and pocket globes.

There's never enough time, Ennis!

Rothko — Sat, 31 Dec 2005 11:57:08 -0800

At 7 PM EST today, 80 cesium-based atomic clocks around the world will stop for precisely one second, to take into account the gradual slowing of the Earth's axial rotation.

What time isn't it?

Cryptical Envelopment — Mon, 06 Dec 2004 20:27:49 -0800

Internet Clocks, Counters and Countdowns

Martian Watches

Ogre Lawless — Fri, 09 Jan 2004 15:28:39 -0800

24:39 NASA is running their Spirit Martian explorer program on Martian solar time. With the project day running 39 minutes longer than a real day, engineers found they faced difficulties adjusting to this virtual timezone. Their solution was nearly as old as timekeeping itself.