The object looks like a sundial with a style normal to the vertical plane (orthostyle) that ends with the central point of the letter M .

I think however that it is  not a sundial. 

- The foot of the style is on the vertical of the 12 hour  line and this happens only if the plane  faces south. But in this case  the 6 hour line   cannot be seen (it is horizontal).

 

- If the plane is turned toward Southeast (around 10°-15°) then the 6 hour line  becomes visible  but the foot of the style falls at left of the 12 hour line. 

 

- All the hour lines seem to come from the foot of the orthostyle while they should be come from the foot of the polar style,  that is more aloft. 

 

Also this seems a false sundial (as that of Harlem), perhaps drawn copying and taking as model a true sundial (  without understanding it).

 

Gianni Ferrari

44° 39' N      10° 55' E
Mailto : [EMAIL PROTECTED]

----- Original Message -----
Sent: Thursday, July 13, 2006 1:50 PM
Subject: McDonald's billboard (A sundial?)


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