Types of Switches
Apart from the standard right-hand and left-hand switches, switches commonly come in various combinations of configurations.
Read more about this topic: Railroad Switch
Famous quotes containing the words types of, types and/or switches:
“Science is intimately integrated with the whole social structure and cultural tradition. They mutually support one otheronly in certain types of society can science flourish, and conversely without a continuous and healthy development and application of science such a society cannot function properly.”
—Talcott Parsons (19021979)
“If there is nothing new on the earth, still the traveler always has a resource in the skies. They are constantly turning a new page to view. The wind sets the types on this blue ground, and the inquiring may always read a new truth there.”
—Henry David Thoreau (18171862)
“I find television very educational. Every time someone switches it on I go into another room and read a good book.”
—Groucho Marx (18951977)