How many shadows an object makes?

Answer 1

A solar eclipse occurs when the Moon is directly between the Earth and the Sun. It is the Moon that is casting the shadow. It would seem like we should experience a solar eclipse every month during the New Moon phase, since the Earth, Moon, and Sun are aligned. The reason that eclipses are so rare, however, is because the moon does not orbit the Earth in quite the same plane as the Earth orbits the sun. Because of this difference, the Moon is usually either slightly above or below the path that the solar rays take on their path to Earth, and the Moon's shadow misses the Earth. The Moon's shadow only hits the Earth on those rare occasions when the Moon's orbit around the Earth intersects the Earth's orbit around the sun, and all three bodies are perfectly aligned. Lunar eclipses (which only occur during Full Moon phase) are more common because the Earth's shadow is larger than the Moon's shadow. The larger shadow is more likely to hit at least part of the Moon's surface and cause a partial eclipse.

Answer 2

One shadow per source of light (either direct or reflected) that is directed towards the object, up to a maximum of three shadows.

Regardless of the number of sources of light and their relative brightness, an object possitioned in a three-dimensional Euclidean space, i.e. the space we can perceive and interact with, can not cast more than three shadows on any surface.

To better understand this rule, think of a cube and it's six sides.

Any source of light can only illuminate up to three of it's sides at once, leaving the other three to cast the object's shadow against the background.

Add two more sources of light and you can completely illuminate all the cube's sides while casting two more extra shadows against the same background, as long as the source of light does not directly illuminate the background and stays behind the cube.

It's at this point that it becomes impossible to add any extra sources of light, from any angle, that will not either strengthen the already projected shadows or diminish their visibility; depending on where the extra light-source is placed in relation to the backdrop.

The same holds true for a sphere, which has an infinite number of sides, or any other object regardless of shape or proportions.

Bottom line: in a three-dimensional Euclidean space, any object can only cast a maximum of three shadows, regardless of the number and intensity of the sources of light illuminating it.

Answer 3

What kind of question is that? Think about it and take a good look around.

Answer 4

A light or the sun, and something to make the shadow

Answer 5

shade is one important thing

any solid thing which is clear less

Answer 6

A large object that is not transparent or translucent will create good shadow, when a light is shone against it.