How to Navigate by the Sun
Download printable quadrant: www.davidcolarusso.com Learn how to find south, your latitude, and your longitude with only a few household items and some know how. I should note, however, that in using the home-made quadrant cited, the precision of your findings will be rather low. Don’t worry, you’ll be within a few hundred miles.
The Tabletop Explainer is an intermittent educational vlog presenting answers to viewer questions, brief science lessons, and ideas for teachers and students. It …
By: dcolarusso
By: dcolarusso

December 25th, 2009 at 14:07
Was very pleased to find this blog.I would like to thank you for this great read!! I clearly enjoying every little bit of it and I have bookmarked to check out new stuff you post.
December 25th, 2009 at 19:19
thank you. =)
December 28th, 2009 at 12:49
Very informative. Thank you
December 29th, 2009 at 19:37
Excellent. Good basic info that too few people know.
I USED to know the hour-hand vs south trick and FORGOT IT. I’d tried finding it online and couldn’t. Glad you reminded me!
December 31st, 2009 at 16:41
great. i had this in school and i still love it. thay didn’t explain to us about artificial horizont tho.
January 2nd, 2010 at 08:23
Great. I hope it’s helpful.
January 6th, 2010 at 23:36
Hi i think what he was trying to say is that when you are in the north hemisphere then the halfway between your hour hand (pointing to the sun) and the noon (which does not always have to be 12) is south. your noon will always create 90 degree angle with your hour hand which is pointing the sun. since our 12-hour watch rotate twice as fast as the sun rotation in one day.
January 9th, 2010 at 03:55
Finally, a science video with facts, not soon to be ‘corrected’ theory.
Thanks.
January 12th, 2010 at 22:54
Good explanation with a few down to earth tips that everyone can follow
January 17th, 2010 at 18:52
well i dont know if i really can help but heres i learned it.
1) remember sun rises east and sets west
2) On your watch, point the hour hand at the sun and half way between the hour hand and 12 is South.
January 18th, 2010 at 19:30
we need you in class!
January 19th, 2010 at 10:43
for me it was hard as i need a real compass to know how accurate i was it seemed a little off for me downunder
January 22nd, 2010 at 12:36
i still don’t get it..
January 26th, 2010 at 10:33
very intersting…they should teach this is in public schools.
January 26th, 2010 at 19:46
Thanks. I’m glad you liked it.
January 27th, 2010 at 07:04
Posting to say, this was amazing!
January 27th, 2010 at 22:17
Haha, yes thanks for the explanation. Well all i can say is that this information is valuable as much as GPS, so i’m glad you posted it.
January 30th, 2010 at 22:11
oh no I know what you mean. I go old school sometimes too. It gives you the same sort feeling of accomplishment as building a stupidly complex rube gold-berg machine.
February 3rd, 2010 at 03:30
Yeah. I always use the sun for time.