Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).

×
Science

+ - Did vikings use the same compass as birds and bees->

Submitted by Anonymous Coward
An anonymous reader writes "If you've been wondering how Vikings found their way from Scandinavia to America, polarizing light birds and bees use as a season-and-latitude-independent compass calibration reference may be the answer.

In the case of the Vikings, they possibly used one of two crystals, cordierite, also called lolite, of Norway, or calcite of Iceland.

By holding a polarizing crystal up to the sky and rotating it, you can determine the direction of the Sun. Summer, when sailors far north ventured upon the seas, they were confronted with nearly perpetual daylight, preventing them from using the stars to navigate. Light consists of electromagnetic waves that oscillate perpendicular to the direction of the light's travel. When the oscillations all point in the same direction, the light is polarized."

Link to Original Source
This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Did vikings use the same compass as birds and bees

Comments Filter:

Chemist who falls in acid is absorbed in work.

Working...