Sliding Mode Observer

Famous quotes containing the words sliding, mode and/or observer:

    What opium is instilled into all disaster? It shows formidable as we approach it, but there is at last no rough rasping friction, but the most slippery sliding surfaces. We fall soft on a thought.
    Ralph Waldo Emerson (1803–1882)

    The mode of clearing and planting is to fell the trees, and burn once what will burn, then cut them up into suitable lengths, roll into heaps, and burn again; then, with a hoe, plant potatoes where you can come at the ground between the stumps and charred logs; for a first crop the ashes suffice for manure, and no hoeing being necessary the first year. In the fall, cut, roll, and burn again, and so on, till the land is cleared; and soon it is ready for grain, and to be laid down.
    Henry David Thoreau (1817–1862)

    I had such a wonderful feeling last night, walking beneath the dark sky while cannon boomed on my right and guns on my left ... the feeling that I could change the world only by being there.
    Viorica Butnariu, Rumanian student at Bucharest University. letter, Dec. 23, 1989, to American friend. Observer (London, Dec. 31, 1989)