Archaeo-optics in Orkney Day 3: Second sunset at the Dwarfie Stane

Optical projection of the setting sun, with the gathering clouds clearly visible (Photo: Aaron Watson)
 
The projection of the solar disc (Photo: Aaron Watson)
 
A projection of Ronnie silhouetted against the disc of the sun (Photos: Aaron Watson).
 
Using a handheld video camera, Ronnie was able to capture some grainy images of the solar disc and animated projections inside the Dwarfie Stane (Video: Ronnie Scott / Edit: Aaron Watson)