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Viking Sunstone
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That's interesting
I always imagined a Sunstone was more spherical and the light passed through it, like the pattern of light passing through a crystal ball onto paper it is resting on, not that you looked through it like a cylindrical lens, rotated it and, having previously "calibrated it", that you can tell in which direction the light source is
Wouldn't it work better if you held it to the eye and scanned the horizon looking for the brightest spot, magnified by the internal refraction of the crystal?
Or am I misreading the description?
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Originally posted by Paul Kearney A.K.A. NEMO View PostThat's interesting
I always imagined a Sunstone was more spherical and the light passed through it, like the pattern of light passing through a crystal ball onto paper it is resting on, not that you looked through it like a cylindrical lens, rotated it and, having previously "calibrated it", that you can tell in which direction the light source is
Wouldn't it work better if you held it to the eye and scanned the horizon looking for the brightest spot, magnified by the internal refraction of the crystal?
Or am I misreading the description?
As I recall, the Sunstone was used in conjunction with a second device, a flat piece of wood on which the shadow was cast.
I recommend watching this episode if you remain interested in how the Sunstone worked. Be forewarned: it involves Viking re-enactors in furry costumes!Pat Dunn
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Originally posted by Howard Brown View Posthttp://www.independent.co.uk/news/sc...s-8521522.html
The coolest, best peeps of them all !!
Hail Odin !
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