Hi Dan,
Allan Mills exhibited a sundial for the blind at the BSS Yarnfield
conference. A sun spot heated a narrow copper strip wound around the outside
of a cylinder with raised numerals in braille. A totlly blind person could then
'feel' the time.
I have a small jpeg if anyone would like to see it via < [email protected]
>
Tony Moss
----Original Message----
From: [email protected]
Date: 10/06/2015 8:35
To: <[email protected]>
Subj: Sundial for the visually impaired
Hello,
I was wondering: has anyone designed a sundial for the blind? Can there be one?
How do you make people feel the shadow?
Dan Uza
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