No, a fire cannot have a shadow in the traditional sense. Shadows are formed when light is blocked by an object, resulting in an area of darkness behind it. Fires, on the other hand, emit light themselves, so they do not block light in a way that creates shadows. However, the intensity of the light emitted by a fire may be reduced in certain directions due to factors like smoke or other obstacles, which can create areas that appear darker compared to the brighter areas around the fire.
Regarding light bending around corners, yes, light can bend or change direction when it encounters an obstacle or passes through a medium with varying refractive properties. This phenomenon is known as diffraction. When light encounters an obstacle or passes through a narrow opening, it can spread out and bend around the edges, resulting in the ability to see objects or receive light in areas that are not in a direct line of sight from the source. This is one of the reasons why we can see objects even if they are not directly illuminated by a light source. Diffraction is also responsible for other optical effects, such as the interference patterns observed in certain experiments, like the famous double-slit experiment.