Make: Online : HOW TO - Use a wrist watch as a compass

HOW TO - Use a wrist watch as a compass

Hl Wristwatch
Handy! How to use a wrist watch as a compass - [via] Link.

Comments

Oldest comments listed first.

Posted by: tramm_hudson on August 15, 2007 at 9:28 AM

Useful, with a few caveats:

* Doesn't work with 24-hour analog dials
* Doesn't work in the Southern Hemisphere
* Doesn't work at night
* Works best around noon
* Varies slightly depending on time of sunset/sunrise
* Need to add an hour with daylight savings time

On my last trip to Australia I observed that I would frequently go in the wrong direction due to my inner sense of "North" being 180 degrees out of phase.

Reply to this comment

Subscribe to MAKE Magazine!

Subscribe today, save 42% and get web access to MAKE free. MAKE Digital Edition is available only to subscribers.

$34.95 / 1 year
(4 Quarterly Issues)

Subscribe now

Void your warranty, violate a user agreement, fry a circuit, blow a fuse, poke an eye out. Make: The risk-takers, the doers, the makers of things... Welcome to Make: Online!

Check out all of the episodes of Make: television

Connect with MAKE

	MAKE on Facebook Visit our Facebook page and become a fan of MAKE!
	MAKE on Twitter Follow our MAKE tweets!
	MAKE on Flickr Join our MAKE Flickr Pool!

make_tips on Twitter

MAKE's RSS feed is here.
Add MAKE to iGoogle - GoogleGoogle.
How to add MAKE to your RSS reader - Real simple.
Add MAKE on FriendFeed

Why advertise on MAKE?
Read what folks are saying about us!

Click here to advertise on MAKE!

Make: Online authors!

Gareth Branwyn
Senior Editor

Phillip Torrone
Senior Editor
| AIM | Twitter

Becky Stern
Associate Editor
| AIM | Twitter

Marc de Vinck
Contributing Writer
| AIM | Twitter

John Park
Contributing Writer
| Twitter

Sean Ragan
Contributing Writer
| Twitter

Matt Mets
Contributing Writer
| AIM | Twitter

Dale Dougherty
Editor & Publisher
| Twitter

Shawn Connally
Managing Editor
| Twitter

Goli Mohammadi
Associate Managing Editor

Kip Kay Kip Kay
Weekend Projects
| AIM | Twitter

Collin Cunningham
Contributing Writer
| AIM | Twitter

Adam Flaherty
Contributing Writer
| AIM | Twitter

More contributors: Mark Frauenfelder (Editor-in-Chief, MAKE magazine), Kipp Bradford (Technical Consultant/Writer), Chris Connors (Education), Diana Eng (Guest Author), Peter Horvath (Intern), Brian Jepson (O'Reilly Media), Robert Bruce Thompson (Science Room)

Suggest a Site!

Current Podcast

Weekend Project: Making Char Cloth Learn how to make a cheap and effective fire starter made from an old t-shirt. To download The Char Cloth video click here and subscribe in iTunes. See Char Cloth in action with the Fire Piston from William Gurstelle.... More...