Wheatstone's Polarizing Dial
An explanation of Wheatstone's invention is to be found in the Report of
the meeting of the British Association for the Advancement of Science in
Swansea held in 1848, although to be honest it's scientific foundation has
me a little challenged! The report is available
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If you go to Kings College London, the Physics Dep
Recently the Tesseract Catalogue 109 was announced on this list. Item nr.
13 is a polarizing sundial by Charles Wheatstone. A virtually identical
dial is in the collection of the Greenwich museums, see:
https://collections.rmg.co.uk/collections/objects/265579.html.
I have never understood how this
