Usage of Low-pressure Lamps For Surface Cleaning
Low-pressure mercury-vapor lamps usually have a quartz bulb in order to allow the transmission of short wavelength light. If synthetic quartz is used, then the transparency of the quartz is increased further and an emission line at 185 nm is observed also. Such a lamp can then be used for the cleaning or modification of surfaces. The line 185 nm will create ozone in an oxygen containing atmosphere, which helps in the cleaning process, but is also a health hazard.
Read more about this topic: Mercury-vapor Lamp
Famous quotes containing the words usage of, usage, lamps, surface and/or cleaning:
“I am using it [the word ‘perceive’] here in such a way that to say of an object that it is perceived does not entail saying that it exists in any sense at all. And this is a perfectly correct and familiar usage of the word.”
—A.J. (Alfred Jules)
“...Often the accurate answer to a usage question begins, “It depends.” And what it depends on most often is where you are, who you are, who your listeners or readers are, and what your purpose in speaking or writing is.”
—Kenneth G. Wilson (b. 1923)
“You are to the Nineties what lava lamps were to the Seventies.”
—Robert Altman, U.S. director, screenwriter, and Barbara Shulgasser. Cort Romney (Richard E. Grant)
“These wonderful things
Were planted on the surface of a round mind that was to become our present time.”
—John Ashbery (b. 1927)
“Conditional love is love that is turned off and on....Some parents only show their love after a child has done something that pleases them. “I love you, honey, for cleaning your room!” Children who think they need to earn love become people pleasers, or perfectionists. Those who are raised on conditional love never really feel loved.”
—Louise Hart (20th century)