Found this article today about a 250 year old mechanical pendulum clock design that keeps near perfect time (loses less than a second every hundred days).
You may be asking yourself, “Why am I getting an email from a GIS listserv about a clock?” Well, it’s because the clock designer was John Harrison, who was a leading figure in creating maritime chronometers for determining longitude for
ocean going navigation. Very interesting man. Worth a Google search.
Dan
Daniel Czaja, GISP
GIS Coordinator
State of Connecticut Department of Emergency Services and Public Protection
Division of Statewide Emergency Telecommunications
1111 Country Club Road
Middletown, CT 06457-9294
Phone: 860.685.8131
Fax: 860.685.8363
"As with all mapping data, sometimes it is accurate, sometimes it is helpful, and once in a while, it is both." - S. Cobb