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:
“Once, when lying in bed with no paper at hand, he began to sketch the idea for a new machine on the back of his wife’s nightgown. He asked her if she knew the figure he was drawing. “Yes,” she answered, “the figure of a fool.””
—For the State of New Jersey, U.S. public relief program (1935-1943)