Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
d cold do not produce the same changes in the relativeposition of the atoms in the one substance that they do in the other. ATTRACTION. 39 oA- Welding is the process of uniting the atoms of substances,as iron to iron or iron to steel, by cohesive attraction, which is accom-plished by h-.immering… … S5. Figure 1.—Interstices between atoms and mole-cules of matter.—The three different sized balls or spheres in thediagram, may represent bodies of matter, ascannon-balls, bullets, and shot, or as apples,plums, and currants ; or they may representatoms or molecules (4) of matter, which varyin size,…
Physics · Astronomy
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