Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 34
at their cohesionis overcome. Onceseparated, cohesioncan only be restoredby bringing the mole-cules very close to-gether again by someagent, such as heat.This is done whentwo pieces of wroughtiron are welded to-gether. The samething takes place inthe working of glass. The strength ofmaterials… … Fig 3.—Showing adhesion between glass andwater to be greater than cohesion in water. 18 PHYSICS as a pull, we measure the tensile strength of the material.When applied as pressure, we measure the compressionstrength. 28. Adhesion is the general name given to the bond ex-isting between unlike…
Physics
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