Elements of natural philosophy (Volume 2-3) . i-ble displacement of the atoms, theordinates E cV, and Ed, on each sideof the position C, of inactivity, mustbe short, and the exponential curve will cross the axis veryobliquely, in order that the ordi-nates expressing the attractive andrepulsive forces may increase , however, it require great forceto produce a sensible compression ordilatation, the curve must cross theaxis almost perpendicularly. But in every case it must be remarked, and the remark is most small compres-important, that when the compression or distension bearssa small p
Elements of natural philosophy (Volume 2-3) . i-ble displacement of the atoms, theordinates E cV, and Ed, on each sideof the position C, of inactivity, mustbe short, and the exponential curve will cross the axis veryobliquely, in order that the ordi-nates expressing the attractive andrepulsive forces may increase , however, it require great forceto produce a sensible compression ordilatation, the curve must cross theaxis almost perpendicularly. But in every case it must be remarked, and the remark is most small compres-important, that when the compression or distension bearssa small proportion to the distance between the neutralpositions of the atoms, the degree of compression or dis-tension will be sensibly propor-tional to the intensity of the dis-turbing force. For, when thedisplacement Dr E or D E isvery small in comparison toC D\ the elementary arc dDdwill sensibly coincide with astraight line, and the ordinates E d and E1 d\ be proportional to the compression D Eor distension D E. That is to say, because action and. sion. A TW
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