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:

    When the shadow of death blots out my joy
    And erases the face of the sun
    Give me strength to endure, hope to believe
    That living and dying are one.
    William L. Wallace (20th century)

    It was a favor for which to be forever silent to be shown this vision. The earth beneath had become such a flitting thing of lights and shadows as the clouds had been before. It was not merely veiled to me, but it had passed away like the phantom of a shadow, skias onar, and this new platform was gained. As I had climbed above storm and cloud, so by successive days’ journeys I might reach the region of eternal day, beyond the tapering shadow of the earth.
    Henry David Thoreau (1817–1862)

    No sooner is your ocean filled, than he grumbles that it might have been of better vintage. Try him with half of a Universe, of an Omnipotence, he sets to quarrelling with the proprietor of the other half, and declares himself the most maltreated of men. Always there is a black spot in our sunshine: it is even as I said, the Shadow of Ourselves.
    Thomas Carlyle (1795–1881)