div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader040vdocumentsmxreader040viewer2022020522575068071a28ab0f07ae43dfhtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: Chemical Engineering at the Imperial College London: Prof P V Danckwerts src=https:reader040vdocumentsmxreader040viewer2022020522575068071a28ab0f07ae43dfhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divp© 1956 Nature Publishing Grouppdiv