Scientific amusements . The Syphon CAPILLAKITY. 119 This attribute of porous substances is called capillarity,and shows itself by capillary attraction in very fine pores ortubes. The same phenomenon is exhibited in blottingpaper, sugar, wood, sand, and lamp-wicks, all of which givefamiliar instances of capillarity. The cook makes use of. An Improvised syphon. this property by using thin paper to absorb grease fromthe surface of soups. Capillarity (already referred to) is the term used todefine capillary force, and is derived from the word capillits,a hair ; and so very small bore tubes are cal
Scientific amusements . The Syphon CAPILLAKITY. 119 This attribute of porous substances is called capillarity,and shows itself by capillary attraction in very fine pores ortubes. The same phenomenon is exhibited in blottingpaper, sugar, wood, sand, and lamp-wicks, all of which givefamiliar instances of capillarity. The cook makes use of. An Improvised syphon. this property by using thin paper to absorb grease fromthe surface of soups. Capillarity (already referred to) is the term used todefine capillary force, and is derived from the word capillits,a hair ; and so very small bore tubes are called capillarytubes. We know that when we plunge a glass tube into I20 WATER. water the liquid will rise up in it, and the narrower the tubethe higher the water will go ; moreover, the water insidewill be higher than at the outside. This is in accordancewith a well-known law of adhesion, which induces concaveor convex surfaces in the liquids in the tubes, according
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