Merry Christmas to all, and to all...

... written for Panbo by Ben Ellison and posted on Dec 24, 2009

The Celestial Compass iPhone app would have trouble near a Pole too.  The ancients developed an amazingly effective system for delineating positions on the earth's surface, but all related systems tend to go wacko when you're in that tiny area where a foot step can span many degrees of longitude.  Big thanks to Dave Blazek for letting me use his cartoon (you can see more here), and for more holiday grins...

EchoPilot's elaborate Christmas Card  (open the text image for detail) is full of chuckles, as always...and how how about Airmar's Happy Holidays card below?  Hard as it is to design good marine electronics, it may be even harder to come up with a marine electronics themed season's greetings!  Has anyone seen other notable electronics-related holiday good wishes?  As for me, I'm glad to be at home in Maine this year, not Brooklyn, and I'm wishing you all stockings full of transducers and other goodies, and lots of love and light.



Synchronicity: TalkingPaws finished my title, last night...

Posted by: Ben at December 24, 2009 9:40 AM | Reply


I wish you and your family all the best for the holidays. The same, of course, goes to all Panbots.

May the "Schwarz" be with you ;)

Kind regards,


Posted by: Philipp at December 24, 2009 7:18 PM | Reply

Ben and all the others out there in cyberspace,

Wishing you all great health, prosperity and serenity for 2010.

Merry Christmas!

Posted by: Chris Ellingsen at December 24, 2009 11:07 PM | Reply


Thanks for another year of informative and entertaining stuff.

Merry Christmas, Happy New Year.

Posted by: Bill at December 25, 2009 6:26 AM | Reply

Wishing you all the best for 2010 - I really enjoy your blog!

Posted by: Todd Riceman at December 26, 2009 4:40 PM | Reply

Happy New Year, and Best Wishes for 2010 Everyone!

Panbot Dan

Posted by: Dan Corcoran (b393capt) at December 27, 2009 11:21 PM | Reply

The ancients developed an amazingly effective system for delineating positions on the earth's surface....

Which methods did you have in mind here??

Posted by: Kris at December 29, 2009 2:35 PM | Reply

I just meant the system of Longitude and Latitude, Kris. It's really held up, even if there have had to be some slight adjustments to the basic measure of one nautical mile (a.k.a. one second of latitude).

The only problem I know of with the Lat/Long system is that degrees of Longitude don't have a fixed length, and the actual distances get extremely short near the Poles, which is hard on related systems like celestial and GPS navigation.

Posted by: Ben at December 29, 2009 4:06 PM | Reply

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