Brewer
Jedi Council Member
Lighters, candles and lanterns cast flickering and weak light, that's why most people don't use them for lighting anymore. Far better to use the sun, big, bright and far away, just like on the Moon. Can even use Moonlight for the experiment. So far single shadows, the only time I get double shadows is when using 2 sources of light. You can get a slight double shadow effect when the sun is diffused through glass, a fly screen or the slender twigs of trees. Nothing as dramatic as the images on that magazine.Why would a lighter not be a good source of light to test out how shadows cast? I'm confused why you would even have such a thinking pattern. A source of light is a source of light, period.
In fact, you can go out into the sun and check out how shadows cast on the ground live too, with the exact same results, depending on where the sun stands in the sky (which time of the day it is) and the different sizes/heights/forms/distances of objects that cast the shadows. Different sizes/heights/forms/distances of objects is the key here together with the height (or angle) of the light source to understand why shadows cast as they do.
Working outdoors that's exactly what I experience daily! Single shadows, parallel too.
The little experiment proofs without a shadow of a doubt that one light source alone can produce all those "strange shadows" including the overlapping ones. Try it and just observe the results. What do you see? Do you really want me to document and take a picture of the resulting shadows so that you can see it yourself? Just do the experiment and you will see exactly what I've said.
Yes, there was only one light source bright enough to cast visible shadows; the sun. As the little experiment clearly shows, the resulting shadows are absolutely consistent with that same single light source. You don't need any other light source to create all those shadows, period.
Yes I and everyone else can explain it via a little experiment like the one I proposed. I just did it. Just try it and observe the results.
Physics departments in universities around the globe would disagree with you, one light, one object, one shadow. However when shown such images these same departments simply choose to ignore it or say something along the lines of 'shadows are different on the moon' or its a penumbra. If you're out and about on a bright sunny cloudless day and see some of these double shadows could you snap them and the object casting it please? Preferably an object roughly LM sized and must have sharply defined edges and angles, no penumbras. Thanks