 Recent research demonstrates that the house is perfectly oriented and aligned to the position of the sunrise at the winter solstice or shortest day of the year - so that the rising sun bisects the house, running through the front door, out the rear door and hitting the sandstone cliff face at the rear of the house.The architraves and stone flooring along the central corridor are evenly illuminated, lasting only for a minute.For over two weeks either side of the winter solstice the effect may be observed with varying luminance and duration, as the sun's elevation and position on the horizon changes.