Pontius N
Curious that Phoenix can postulate that the images, based on colour, is acceptable but two posts pointing out that these are SOUND images from which you cannot deduce color, and that the dark patches are SOUND shadows were both deleted.
Sorry for late answer, I login only several minutes in the evenings. I read your deleted post and I agree with you about sound imagine shadow. But, if you look closely to the darken tones, especially at ``the engine`` on the left side of the imagine below, you can say that the projector was scanning from N-W of the imagine. If all darken areas are only shadow, then it seems that there are 2 shadows. However, if it`s an engine, the nozzle is in the shadow of the larger diameter anyway. I saw the most darken area as the nozzle and the bottom side as the nozzle shadow, but of course these are just personal suppositions.
thcrozier,
See scale in imagine below
http://cdn.images.express.co.uk/img/...ane-330856.jpg