Comments on: Earth’s Impending Magnetic Flip . . . https://habitablezone.com/2014/09/29/earths-impending-magnetic-flip/ Thu, 09 Apr 2026 15:15:13 -0700 hourly 1 http://wordpress.org/?v=3.3.1 By: ER https://habitablezone.com/2014/09/29/earths-impending-magnetic-flip/#comment-31917 ER Mon, 29 Sep 2014 17:18:51 +0000 https://www.habitablezone.com/?p=47650#comment-31917 You really need to know where you're going. And you need to know which way to point the boat to go there. It is possible to determine compass direction at sea using purely astronomical methods, but it requires a cloud-free sky. http://en.wikipedia.org/wiki/Astrocompass <img src="http://upload.wikimedia.org/wikipedia/commons/1/1b/Astrocompass_mk_II.jpg" alt="." /> You really need to know where you’re going. And you need to know which way to point the boat to go there.

It is possible to determine compass direction at sea using purely astronomical methods, but it requires a cloud-free sky.

http://en.wikipedia.org/wiki/Astrocompass

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]]> By: DanS https://habitablezone.com/2014/09/29/earths-impending-magnetic-flip/#comment-31916 DanS Mon, 29 Sep 2014 16:50:17 +0000 https://www.habitablezone.com/?p=47650#comment-31916 At least you'll know where you're at. At least you’ll know where you’re at.

]]> By: ER https://habitablezone.com/2014/09/29/earths-impending-magnetic-flip/#comment-31915 ER Mon, 29 Sep 2014 16:11:52 +0000 https://www.habitablezone.com/?p=47650#comment-31915 You need a compass to steer a course. You need a compass to steer a course.

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