Trapezoidal Screw Threads

Famous quotes containing the words screw and/or threads:

“Let us have a good many maples and hickories and scarlet oaks, then, I say. Blaze away! Shall that dirty roll of bunting in the gun-house be all the colors a village can display? A village is not complete, unless it have these trees to mark the season in it. They are important, like the town clock. A village that has them not will not be found to work well. It has a screw loose, an essential part is wanting.”
—Henry David Thoreau (1817–1862)

“Always the silence, the gesture, the specks of birds
suspended on invisible threads above the Site,”
—Elizabeth Bishop (1911–1979)