Helmholtz(redirected from Hermann von Helmholtz)
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Baron Hermann Ludwig Ferdinand von . 1821--94, German physiologist, physicist, and mathematician: helped to found the theory of the conservation of energy; invented the ophthalmoscope (1850); and investigated the mechanics of sight and sound
A unit of dipole moment per unit area, equal to 1 Debye unit per square angstrom, or approximately 3.335 × 10-10 coulomb per meter.