The Physics of Blown Sand and Desert Dunes (1941) is a science book, written by Ralph A. Bagnold. The book laid the foundations of the scientific investigation of the transport of sand by wind. It also discusses the formation and movement of sand dunes in the Libyan Desert. During his expeditions into the Libyan Desert, Bagnold had been fascinated by the shapes of the sand dunes, and after returning to England he built a wind tunnel and conducted the experiments which are the basis of the book. The book is still a main reference in the field, and was, for instance, used by NASA for studying sand dunes on Mars. It was recently reissued by Dover.
Famous quotes containing the words physics, blown, sand and/or desert:
“He who is conversant with the supernal powers will not worship these inferior deities of the wind, waves, tide, and sunshine. But we would not disparage the importance of such calculations as we have described. They are truths in physics because they are true in ethics.”
—Henry David Thoreau (1817–1862)
“I climb to the tower-top and lean upon broken stone,
A mist that is like blown snow is sweeping over all,
Valley, river, and elms, under the light of a moon
That seems unlike itself, that seems unchangeable,
A glittering sword out of the east.”
—William Butler Yeats (1865–1939)
“If there was one egg in it there were nine,
Torpedo-like, with shell of gritty leather,
All packed in sand to wait the trump together.”
—Robert Frost (1874–1963)
“Every human being, my dear, must thus be viewed according to what it is good for, for none of us, no not one, is perfect; and were we to love none who had imperfections, this world would be a desert for our love.”
—Thomas Jefferson (1743–1826)