Shadow

Shadow

A shadow is an area where direct light from a light source cannot reach due to obstruction by an object. It occupies all of the space behind an opaque object with light in front of it. The cross section of a shadow is a two-dimensional silhouette, or reverse projection of the object blocking the light. The sun causes many objects to have shadows and at certain times of the day, when the sun is at certain heights, the lengths of shadows change.

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Famous quotes containing the word shadow:

    The whole shadow of Man is only as big as his hat.
    Elizabeth Bishop (1911–1979)

    I verily believe
    My fair impression may
    Be all from that one day
    No shadow crossed but ours....
    Robert Frost (1874–1963)

    Shakespeare carries us to such a lofty strain of intelligent activity, as to suggest a wealth which beggars his own; and we then feel that the splendid works which he has created, and which in other hours we extol as a sort of self-existent poetry, take no stronger hold of real nature than the shadow of a passing traveller on the rock. The inspiration which uttered itself in Hamlet and Lear could utter things as good from day to day, for ever.
    Ralph Waldo Emerson (1803–1882)