div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: An ancient wind-powered iron smelting technology in Sri Lanka src=https:reader031fdocumentsinreader031viewer2022020523575068981a28ab0f07b0e508html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divp© 1996 Nature Publishing Grouppdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: An ancient wind-powered iron smelting technology in Sri Lanka src=https:reader031fdocumentsinreader031viewer2022020523575068981a28ab0f07b0e508html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divp© 1996 Nature Publishing Grouppdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: An ancient wind-powered iron smelting technology in Sri Lanka src=https:reader031fdocumentsinreader031viewer2022020523575068981a28ab0f07b0e508html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divp© 1996 Nature Publishing Grouppdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: An ancient wind-powered iron smelting technology in Sri Lanka src=https:reader031fdocumentsinreader031viewer2022020523575068981a28ab0f07b0e508html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divp© 1996 Nature Publishing Grouppdiv