The birds flying in the sky do not cast their shadow on the earth because the umbra is absent and the penumbra is too large and too faint that it is not visible as the distance of the earth is very large from the bird.
Flying birds do cast shadows. It's just that the distance from the earth makes them barely visible.
They do cast shadows.
Birds flying up in the sky do not cast their shadow because the source of light (sun) is too large compared to the object (bird) and the umbra of the shadow formed on the screen (ground) is very small, negligible.So it is tough to see its shadow on the ground. (P.S. If this is a VNS student reading this for Physics research, then I'm pretty sure you're in my grade and you know who I am)
Aeroplanes DO cast shadows on earth, I have seen many. They are usually easier to see from the air.
yes
Predatory birds often cast shadows. Many other animals interpret all shadows as a threat to them, and flee.
Yes, the Earth and Moon both cast shadows. During a solar eclipse, the Moon casts a shadow on the Earth, blocking sunlight and creating darkness in certain areas. Conversely, during a lunar eclipse, the Earth casts a shadow on the Moon, causing it to darken. Both phenomena demonstrate how celestial bodies can obstruct light and create shadows in space.
It's dark or the sun is directly overhead.
The qualities of the shadows are identical but the size of the objects casting shadows differs greatly.
Cast of Shadows has 336 pages.
Cast of Shadows was created on 2005-03-01.
Cast Two Shadows was created in 1998.