Tunnel - Floor Lowering

Floor Lowering

Tunnels can also be enlarged by lowering the floor.

Read more about this topic:  Tunnel

Famous quotes containing the words floor and/or lowering:

    “Before she has her floor swept
    Or her dishes done.
    Any day you’ll find her
    A-sunning in the sun!”
    —Edna St. Vincent Millay (1892–1950)

    “Science is a dynamic undertaking directed to lowering the degree of the empiricism involved in solving problems; or, if you prefer, science is a process of fabricating a web of interconnected concepts and conceptual schemes arising from experiments and observations and fruitful of further experiments and observations.”
    —James Conant (1893–1978)