Even at the awkward angle from which we view the picture, we read it from left to right, as we do the sequence of the three paintings, but we also read from right to left, from the source of illumination above to its objects below.
These explosion proof LED flashlights are ideal for operators in hazardous and non hazardous locations who need a highly reliable yet powerful and long lived source of portable illumination for activities such as utilities repairs and plant inspections.
Admittedly, this unusual memory requires an internal light source, but the amount of illumination required is tiny and consumes less power than the logic circuits that are used to read data in and out.