## The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1923 - Physics |

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Page 401

The negative elongation Yı , at the end of this first half

in ( 5 ) t = 7 / 9 . We thus obtain Ae - ka9 = - Ap , ( 7 ) where ( 8 ) For the second

half

The negative elongation Yı , at the end of this first half

**period**, is found by puttingin ( 5 ) t = 7 / 9 . We thus obtain Ae - ka9 = - Ap , ( 7 ) where ( 8 ) For the second

half

**period**F and S change sign so that the axis of our exponentially damped ...Page 652

hours 90 B 235 ( 3 ) Uranium Y , ca . 1 minute 91 B 235 Actinuranium II > 2x109

years 92 Parent of Proto - actinium > 20 years Proto - actinium < 1 . 2x104 years ...

**Period**. 2 . Radiation . a . ( 1 ) Actinuranium I ca . 8 x 10o years 92 Uranium Y 28hours 90 B 235 ( 3 ) Uranium Y , ca . 1 minute 91 B 235 Actinuranium II > 2x109

years 92 Parent of Proto - actinium > 20 years Proto - actinium < 1 . 2x104 years ...

Page 685

Neglecting the third , which for some reason displays a wide discrepancy from

the others , the mean is 23,600 , which corresponds to a half - value

16,400 . Exactly the same method of calculation may be used to arrive at the

Neglecting the third , which for some reason displays a wide discrepancy from

the others , the mean is 23,600 , which corresponds to a half - value

**period**of16,400 . Exactly the same method of calculation may be used to arrive at the

**period**of ...### What people are saying - Write a review

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### Contents

SIXTH SERIES | 1 |

JULY 1923 | 17 |

Mr B E Mourashkinsky on the Diffraction Pattern in a case | 29 |

79 other sections not shown

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absorption alloys angle appears approximately armature assume atom break calculated centre charge circuit compared considerable considered constant corresponding curve density determined direction distance effect electric electrons elements energy equal equation evidence experimental experiments expression fact field force function give given greater heat hydrogen increase integral intensity latter length less light limit lines magnetic marked maximum mean measured method molecules motion negative observed obtained occur oscillation pass period Phil plane plate position possible potential present pressure primary probably produced quantity radiation rays regard region relation relative represented respectively rotation seen separation shown side solution spectrum surface Table taken temperature theory tube unit variation various vary velocity volume zero