div class=trans-pagebuttonPage 1button div class=trans-image a href=https:reader030fdocumentsusreader030viewer2022020522575067cb1a28ab0f07ad3006html5page1jpg target=_blank amp-img class=trans-thumb alt=Page 1: Mechanics for Beginners src=https:reader030fdocumentsusreader030viewer2022020522575067cb1a28ab0f07ad3006html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divp© 1932 Nature Publishing Grouppdiv