Pinhole Camera

1. The main differences that I see between my positive and negative pictures is that a) The colors have been switched and b) The image has been flipped so that the object(s) are now on opposite sides.
2. My negative looks different then my positive because, since the photo paper was light sensitive it was able to pick up the sunlight, which is a negative source. And when developed, the negative picture was able to transfer into a positive photo because I reversed the light to project the negative as a double negative, making thus the positive photo.
3. Due to refraction (the bending of light upon a medium) the picture thus creates that "curve" around the edges.