div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentgravity-earths-gravity-field-changes-from-place-to-place-htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: GRAVITY Earths gravity field changes from place to place loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader031fdocumentsnetreader031viewer20220224086216dcac55ab2b00f3537aa5html5thumbnails1jpg width=140 height=200 divdiv