Archaeo-optics in Orkney Day 3: Daytime projections at the Dwarfie Stane

The sunset projections the previous evening suggested a lot of potential, but I also wanted to show Ronnie the Dwarfie Stane's projection capabilities in bright sunlight.

The landscape setting of the Dwarfie Stane. It is this distinctive skyline that is projected into the chamber (Photo: Aaron Watson)
 
Looking out of the Dwarfie Stane's entrance. (Photo: Aaron Watson)
 
Looking through the entrance into the Dwarfie Stane's chamber. The far wall above to the 30cm scale acts as the screen upon which projected images appear (Photo: Aaron Watson)
 

Amazing optical images manifesting in the chamber...

Long exposure photograph of the rear wall of the Dwarfie Stane with an aperture plane in place at the entrance. The landscape and sky are projected upside down and back to front (Photo: Aaron Watson)

Projection showing Ronnie standing a few metres from the Dwarfie Stane (Photo: Aaron Watson)

Ronnie leaning against the 'blocking' stone about one metre outside the entrance into the Dwarfie Stane (Photo: Aaron Watson)