Filter paper is a semi-permeable paper barrier placed perpendicular to a liquid or air flow. It is used to separate fine solids from liquids or air.
Read more about Filter Paper: Properties, Manufacture
Famous quotes containing the word paper:
“Poems stirred
into paper coffee-cups, eaten
with petals on rye in the
sun—the cold shadows in back,
and the traffic grinding the
borders of spring ...”
—Denise Levertov (b. 1923)