![]() Nature seems to be a pragmatic rather than mathematical designer and, after all, bad designs can always be eaten by good ones. ![]() … Just as stress tells us how hard - that is, with how much force - the atoms at any point in a solid are being pulled apart, so strain tells us how far they are being pulled apart - that is, by what proportion the bonds between the atoms are stretched.Īll the while Gordon is teaching you this stuff, he is dropping in funny little comments that keep you engaged with the subject matter. (Stress) is a measure of how hard the atoms and molecules which make up the material areīeing pushed together or pulled apart as a result of external forces. Gordon starts out introducing some key concepts, like making a clear distinction of the difference between stress and strain: ![]()
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