000 00271nam a2200121Ia 4500
100 _aPoynting,J.H.
942 _cBK
654 _a
245 _aEarth
_bits shape,size,weight and spin
260 _aLondon
_bUniversities Press
_c1913
082 _a525
300 _a(3),146
999 _c380841
_d380841
041 _aeng