## Journal of the Franklin Institute, Volume 266Pergamon Press, 1958 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |

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Page 439

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**Poynting theorem**which can be given a reasonable physical interpretation with moving media present . The power converted to me- chanical form , for example , is lost somewhere in the usual**Poynting theorem**. This fact among others has ...Page 441

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**Poynting theorem**in the form of Eq . 6 should remain unchanged . Its interpretation also ought to be the same in the presence of moving materials if the usual interpretation is sufficiently general ...**POYNTING THEOREM**FOR MOVING BODIES.Page 442

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**Poynting's theorem**. Unfortunately no amount of juggling of terms or Lorentz transform- ing back and forth between frames leads to a reasonable interpretation of the terms E.ƏD / ǝt and H.ƏB / at in**Poynting's theorem**. One should be ...### Contents

JULY 1958 No | 1 |

Effects of Unipolar Air Ions on Microorganisms and on Evaporation | 9 |

Plastics in the Space Age JOHN H Lux | 21 |

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acceleration accelerometer analysis angle applied Atomic attacking moments axis Bell Telephone Laboratories Benjamin Franklin Parkway Chairman chapter coefficients Committee components conjugate frames constant diagrams difference equations discussion Donald Wills Douglas Earth effect electrical electronic energy Engineering error ferrocene field flight fluid force Franklin Institute Franklin Institute Laboratories function gyro gyroscope heat hinge rotations inertial guidance inertial guidance system initial instrument LEPAGE linear load M₁ mass material mathematical mechanism Medal method momentum navigation nuclear obtained operation paper particles perturbation Phila Philadelphia physical plastic platform position Poynting theorem present Price problem proper frame radius range reactor reference rest mass rocket Science shown in Fig solution space techniques temperature theory tion torque trajectory transformation tube velocity voltage York z-transform zero Δφ