How Vikings Might Have Navigated on Cloudy Days
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Vikings navigated the oceans with sundials aboard their Norse ships. But on an overcast day, sundials would have been useless. Many researchers have suggested that on the foggy days, Vikings looked toward the sky through rock crystals called sunstones to give them direction.
Source: Live Science >>> How Vikings Might Have Navigated on Cloudy Days
........................ The Vikings discover North America: 9 October 1002
Last edited by Heimdallr; Sunday, March 4th, 2007 at 19:19.
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