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van der Waals force |
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van der Waals force [′van dər ‚wȯlz ‚fȯrs] (physical chemistry) An attractive force between two atoms or nonpolar molecules, which arises because a fluctuating dipole moment in one molecule induces a dipole moment in the other, and the two dipole moments then interact. Also known as dispersion force; London dispersion force; van der Waals attraction. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Weak forces called van der Waals interactions hold the threads together end-to-end. These instruments generate their ultra-high resolution images by measuring a variety of very subtle physical forces including magnetic or electrostatic forces, attractive forces known as van der Waals interactions, and other delicate, but measurable phenomena. |
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