Famous quotes containing the words mach and/or angle:
“Physics is experience, arranged in economical order.”
—Ernst Mach (1838–1916)
“The inhabitants of earth behold commonly but the dark and shadowy under side of heaven’s pavement; it is only when seen at a favorable angle in the horizon, morning or evening, that some faint streaks of the rich lining of the clouds are revealed.”
—Henry David Thoreau (1817–1862)