Shipwreck may contain near-mythical Viking navigation aid: An oblong crystal found in the wreck of a 16th-century English warship is a sunstone, a near-mythical navigational aid said to have been used by Viking mariners, researchers said on Wednesday.
The stone is made of Iceland spar, a transparent, naturally-occurring calcite crystal that polarises light and can get a bearing on the Sun, they said.
2 comments:
I love when they find this stuff.
So do I, and I hope it's really a sunstone.
Post a Comment