Phase Change Materials

Famous quotes containing the words phase, change and/or materials:

    The problem of the twentieth century is the problem of the color-line—the relation of the darker to the lighter races of men in Asia and Africa, in America and the islands of the sea. It was a phase of this problem that caused the Civil War.
    —W.E.B. (William Edward Burghardt)

    To the sick the doctors wisely recommend a change of air and scenery.
    Henry David Thoreau (1817–1862)

    Our job is now clear. All Americans must be prepared to make, on a 24 hour schedule, every war weapon possible and the war factory line will use men and materials which will bring, the war effort to every man, woman, and child in America. All one hundred thirty million of us will be needed to answer the sunrise stealth of the Sabbath Day Assassins.
    Lyndon Baines Johnson (1908–1973)