div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentssitereader042viewer2022020405575067ee1a28ab0f07add0fehtml5page1jpg target=_blank img data-url=gold-medal-of-the-royal-astronomical-society-prof-m-g-j-minnaerthtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Gold Medal of the Royal Astronomical Society: Prof M G J Minnaert loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentssitereader042viewer2022020405575067ee1a28ab0f07add0fehtml5thumbnails1jpg width=140 height=200 adivp© 1947 Nature Publishing Grouppdiv